Consulta: subjectFacets:"Bovine"
Registros recuperados: 190
Data/hora: 02/06/2024 10:59:45

Factores limitantes de la productividad en los agroecosistemas con ganado bovino de doble propósito en la región centro de Chiapas, México.
Provedor de dados: 32
Autores: Orantes Zebadúa, Miguel Angel.
La productividad pecuaria en el sureste de México es mermada por algunos factores climáticos, biológicos, tecnológicos y de manejo. El objetivo  de este trabajo fue determinar aquellos factores que limitan la productividad de los sistemas de ganado bovino de doble propósito en la región centro de Chiapas. El estudio se desarrolló en la región 01 centro de Chiapas de octubre de 2007 a mayo de 2008. Se realizó una encuesta directa a 246 de un padrón de 1240 productores correspondientes a nueve municipios de los 22 que conforma la región centro. Se calcularon estadísticos descriptivos de los datos provenientes de la encuesta. La edad promedio de los productores fue 50 años, con nivel medio de estudio de sexto de primaria, el 62 % son pequeños propietarios que...
Palavras-chave: Sistemas de producción; Bovinos; Doble propósito; Production systems; Bovine; Dual purpose; Doctorado; Agroecosistemas Tropicales.
Ano: 2010
URL: http://hdl.handle.net/10521/206

Factores limitantes de la productividad en los agroecosistemas con ganado bovino de doble propósito en la región centro de Chiapas, México.
Provedor de dados: 32
Autores: Orantes Zebadúa, Miguel Angel.
La productividad pecuaria en el sureste de México es mermada por algunos factores climáticos, biológicos, tecnológicos y de manejo. El objetivo  de este trabajo fue determinar aquellos factores que limitan la productividad de los sistemas de ganado bovino de doble propósito en la región centro de Chiapas. El estudio se desarrolló en la región 01 centro de Chiapas de octubre de 2007 a mayo de 2008. Se realizó una encuesta directa a 246 de un padrón de 1240 productores correspondientes a nueve municipios de los 22 que conforma la región centro. Se calcularon estadísticos descriptivos de los datos provenientes de la encuesta. La edad promedio de los productores fue 50 años, con nivel medio de estudio de sexto de primaria, el 62 % son pequeños propietarios que...
Palavras-chave: Sistemas de producción; Bovinos; Doble propósito; Production systems; Bovine; Dual purpose; Doctorado; Agroecosistemas Tropicales.
Ano: 2010
URL: http://hdl.handle.net/10521/206

QTL affecting body weight in a candidate region of cattle chromosome 5
Provedor de dados: 74
Autores: Machado,Mariana B.B.; Alencar,Maurício M.; Pereira,Andréa P.; Oliveira,Henrique N.; Casas,Eduardo; Coutinho,Luis L.; Regitano,Luciana C.A.
The objective of this work was to identify QTLs for liveweight in a candidate region of bovine chromosome 5. Half-sib families from two lines, one traditional and the other new, of Canchim beef cattle (5/8 Charolais + 3/8 Zebu) were genotyped for four microsatellite markers, including the microsatellite in the IGF-1 (insulin-like growth factor-1) promoter region. Significant differences in allele distribution between the two lines were found for three markers. Interval mapping analyses in this region indicated the presence of a QTL controlling birth weight (p &lt; 0.05) and of a QTL influencing breeding value for yearling weight (p &lt; 0.01) in the newer line of the breed. The previously identified interaction between the IGF-1 genotype and genetic group...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: QTL; Growth traits; Microsatellite; Bovine.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300008

Comparison of the effectiveness of microsatellites and SNP panels for genetic identification, traceability and assessment of parentage in an inbred Angus herd
Provedor de dados: 74
Autores: Fernández,María E.; Goszczynski,Daniel E.; Lirón,Juan P.; Villegas-Castagnasso,Egle E.; Carino,Mónica H.; Ripoli,María V.; Rogberg-Muñoz,Andrés; Posik,Diego M.; Peral-García,Pilar; Giovambattista,Guillermo.
During the last decade, microsatellites (short tandem repeats or STRs) have been successfully used for animal genetic identification, traceability and paternity, although in recent year single nucleotide polymorphisms (SNPs) have been increasingly used for this purpose. An efficient SNP identification system requires a marker set with enough power to identify individuals and their parents. Genetic diagnostics generally include the analysis of related animals. In this work, the degree of information provided by SNPs for a consanguineous herd of cattle was compared with that provided by STRs. Thirty-six closely related Angus cattle were genotyped for 18 STRs and 116 SNPs. Cumulative SNPs exclusion power values (Q) for paternity and sample matching...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microsatellite; Single nucleotide polymorphism; Exclusion probability; Genetic identification; Bovine.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000200008

Mitochondrial DNA single nucleotide polymorphism associated with weight estimated breeding values in Nelore cattle (Bos indicus)
Provedor de dados: 74
Autores: Biase,Fernando Henrique; Meirelles,Flávio Vieira; Gunski,Ricardo; Vozzi,Pedro Alejandro; Bezerra,Luiz A.F.; Vila,Reginaldo A.; Rosa,Artur J.M.; Lôbo,Raysildo B.; Martelli,Lúcia.
We sampled 119 Nelore cattle (Bos indicus), 69 harboring B. indicus mtDNA plus 50 carrying Bos taurus mtDNA, to estimate the frequencies of putative mtDNA single nucleotide polymorphisms (SNPs) and investigate their association with Nelore weight and scrotal circumference estimated breeding values (EBVs). The PCR restriction fragment length polymorphism (PCR-RFLP) method was used to detect polymorphisms in the mitochondrial asparagine, cysteine, glycine, leucine and proline transporter RNA (tRNA) genes (tRNAasn, tRNAcys, tRNAgly, tRNAleu and tRNApro). The 50 cattle carrying B. taurus mtDNA were monomorphic for all the tRNA gene SNPs analyzed, suggesting that they are specific to mtDNA from B. indicus cattle. No tRNAcys or tRNAgly polymorphisms were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Mitochondria; MtDNA; SNP; Weight.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000600005

Genetic characterization of Aberdeen Angus cattle using molecular markers
Provedor de dados: 74
Autores: Vasconcellos,Luciana Pimentel de Mello Klocker; Tambasco-Talhari,Daniella; Pereira,Andréa Pozzi; Coutinho,Luiz Lehmann; Regitano,Luciana Correia de Almeida.
Aberdeen Angus beef cattle from the Brazilian herd were studied genetically using restriction fragment length polymorphism (RFLP) of the kappa-casein - HinfI (CSN3 - HinfI), beta-lactoglobulin - HaeIII (LGB - HaeIII) and growth hormone AluI (GH- AluI) genes, as well as four microsatellites (TEXAN15, CSFM50, BM1224 and BM7160). The RFLP genotypes were determined using the polymerase chain reaction (PCR) followed by digestion with restriction endonucleases and electrophoresis in agarose gels. With the exception of the microsatellite BM7160, which was analyzed in an automatic sequencer, the PCR products were genotyped by silver staining. The allele and genotype frequencies, heterozygosities and gene diversity were estimated. The values for these parameters of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aberdeen Angus; Bovine; DNA; Characterization; RFLP; Microsatellite.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000200005

A methodological approach for the construction of a radiation hybrid map of bovine chromosome 5
Provedor de dados: 74
Autores: De Donato,M.; Brenneman,R.A.; Stelly,D.M.; Womack,J.E.; Taylor,J.F.
A bovine 5,000 rad WG-RH panel was used to construct an RH map of bovine chromosome 5 (BTA5). Twenty-one microsatellites and thirteen genes were scored in the panel using PAGE and radioactive labeling. Marker retention ranged from 8.9%-25.8% and averaged 17.8%. Pairwise locus analysis placed all markers in a single syntenic group with a LOD support of 4.0. At a LOD support of 8.0, a centromeric group of 23 syntenic markers was formed. Telomeric groups of 11 and 9 markers were assembled with a LOD support of 6.0 and 8.0, respectively. All markers were ordered by maximum likelihood methods using the program RHMAP. Only 13 markers were ordered with a LOD support of at least 3.0, while 25 and 29 markers were ordered with a support of at least 2.0 and 1.0,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: RH map; Bovine; Gene mapping.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000100005

Comparative analysis of human and bovine protein kinases reveals unique relationship and functional diversity
Provedor de dados: 74
Autores: Kabir,Nuzhat N.; Kazi,Julhash U.
Reversible protein phosphorylation by protein kinases and phosphatases is a common event in various cellular processes. The eukaryotic protein kinase superfamily, which is one of the largest superfamilies of eukaryotic proteins, plays several roles in cell signaling and diseases. We identified 482 eukaryotic protein kinases and 39 atypical protein kinases in the bovine genome, by searching publicly accessible genetic-sequence databases. Bovines have 512 putative protein kinases, each orthologous to a human kinase. Whereas orthologous kinase pairs are, on an average, 90.6% identical, orthologous kinase catalytic domain pairs are, on an average, 95.9% identical at the amino acid level. This bioinformatic study of bovine protein kinases provides a suitable...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: EPK; Kinome; APK; Bovine.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400010

Use of the TSPY gene for sexing cattle
Provedor de dados: 74
Autores: Lemos,Daniela Cristina; Rios,Álvaro Fabrício Lopes; Caetano,Lisandra Cristina; Lôbo,Raysildo Barbosa; Vila,Reginaldo Aparecido; Martelli,Lúcia; Takeuchi,Paula Lumy; Ramos,Ester Silveira.
The Y-encoded, testis-specific protein (TSPY) is a Y-specific gene. The copy numbers of TSPY range from 20 to 60 in men and up to 200 in bulls. In this study, we examined the possibility of using the TSPY gene to sex cattle. DNA from blood samples of 100 Nelore cattle (50 males and 50 females) from the Nelore Cattle Breeding Program (PMGRN) was screened for TSPY by PCR using TSPY-specific primers. The assay was highly specific since all male samples were TSPY-positive and all female samples were negative. Positive results were also obtained at low DNA concentrations (less than 1 rhog/muL). These results showed that TSPY was a good male-specific marker, the usefulness of which was enhanced by the high copy number of the gene. This is the first report to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Cattle; PCR; Sexing; TSPY.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100020

Analysis of restriction fragment length polymorphism in the kappa-casein gene related to weight expected progeny difference in Nellore cattle
Provedor de dados: 74
Autores: Biase,Fernando H.; Garnero,Analia Del V.; Bezerra,Luiz A.F.; Rosa,Arthur J.M.; Lôbo,Raysildo B.; Martelli,Lúcia.
Restriction fragment length polymorphism (RFLP) has been detected at the bovine kappa-casein locus. The polymorphism has been analyzed for its effects in cattle production, mostly for milk traits and even for maternal effect on pre-weaning weights. We used polymerase chain reaction - restriction fragment length polymorphism (PCR-RFLP) to genotype 408 Nellore animals for the non-silent mutation (Thr/Ile136 and Asp/Ala148) that characterizes the A and B variants of the polymorphism and compared expected progeny difference (EPD) for a maternal effect on 120 and 210 days weights and direct EPD for 120, 210, 450 and 550 day weight between AA and AB animals. The EPD values were obtained from the University of São Paulo (Brazil) Nellore Cattle Breeding Program,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Weight; Kappa-casein; Genetic marker.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100014

Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle
Provedor de dados: 74
Autores: Oliveira,João F.C. de; Neves,Jairo P.; Almeida,Eric A.; Steigleder,Clara Sabina; Moraes,José Carlos F.; Gonçalves,Paulo Bayard D.; Weimer,Tania A.
The aim of the present study was to verify associations between reproductive efficiency and four microsatellite markers located in synteny with genes involved in the regulation of reproductive mechanisms. A sample of 107 females from a Brangus Ibagé population (5/8 Aberdeen Angus x 3/8 Nelore) was characterized for ETH225 (D9S1) and MM12E6 (D9S20) microsatellites, mapped on chromosome 9, and HEL5 (D21S15) and AFZ1 (D21S37) on chromosome 21. Associations between the genetic markers and reproductive efficiency were determined by one-way analysis of variance using calving interval (CI), live weight at calving (LWC), live weight at first calving (LW1C) and live weight at second calving (LW2C) as dependent variables. The genotypes were classified according to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; IGF-I receptor; Estrogen receptor; Reproductive efficiency.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100010

Síntese da pesquisa agropecuária em Roraima.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agroflorestal de Roraima. (Boa Vista, RR).
Agricultura. Agropecuaria.
Tipo: Folhetos
Palavras-chave: Arroz de sequeiro; Feijao caupi; Cana-de-acucar; Cowpea; Sorgun; Soybean; Carrot; Onion; Potato; Tomato; Maracock; Pineapple; Bovine; Pasture; Abacaxi; Alface; Arroz Irrigado; Banana; Batata; Bovino; Cebola; Cenoura; Guaraná; Laranja; Mandioca; Maracujá; Milho; Ovino; Pastagem; Repolho; Soja; Sorgo; Cabbage; Cassava; Corn; Lettuce; Rice; Sheep; Sugarcane.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/692195

Estudo das características e análises de alguns indicadores técnicos e econômicos da pecuária no Nordeste paraense.
Provedor de dados: 14
Autores: HOMMA, A. O.; SÁ, F. T. de; NASCIMENTO, C. N. B. do; CARVALHO, L. O. D. de M.; MELLO FILHO, B. M.; MOREIRA, E. D.; TEIXEIRA, R. N. G.
bitstream/item/58997/1/CPATU-ComTec13.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Nordeste; Pará; Brasil; Economy; Bovine; Creation.; Bovino; Criação; Economia; Pecuária.; Amazonia; Cattle breeding.
Ano: 1978
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376709

"Mosca-dos-chifres", Haematobia irritans: diagnóstico e controle.
Provedor de dados: 14
Autores: SAUERESSIG, T. M.
bitstream/item/101736/1/doc-09.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Mosca-do-chifre; Horn fly; Bovine; Controle de doença; Mosca-dos-chifres.; Bovino; Doença Animal; Haematobia Irritans.; Animal diseases; Disease control.; Cattle.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/554972

Resistencia da aveia e azevem a ferrugem.
Provedor de dados: 14
Autores: BOTREL, M. de A.; GARDNER, A. L.
bitstream/item/90980/1/CT-11-Resistencia-da-aveia.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Plantas forrageiras; Doencas; Bovinos; Diseases; Bovine; Plant; Alimentation.; Alimentação; Azevém; Aveia; Ferrugem; Inverno.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/581767

Nutrição mineral de bovinos.
Provedor de dados: 14
Autores: POTT, E. B.
bitstream/item/225903/1/NutricaoMineralBovinos.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Nutrição mineral; Bovine; Mineral nutrition; Bovino.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/43959

Prevalencia da leptospirose em bovinos do Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: PELLEGRIN, A. O.; GUIMARAES, P. H. da S.; SERENO, J. R. B.; FIGUEIREDO, J. P.; LAGE, A. P.; MOREIRA, E. C.; LEITE, R. C.
No Pantanal, a principal atividade economica e a pecuaria de corte, explorada de forma extensiva, em pastagens nativas, com baixa taxa de lotacao (3,6ha/ UA), onde predominam as fases de cria e recria em regime extensivo. O nivel tecnologico utilizado e baixo, compativel com uma atividade praticada de forma sustentada, praticada de acordo com as caracteristicas hidrologicas da regiao. Neste sistema, os animais recebem poucos cuidados e sao mantidos quase que exclusivamente em pastagens nativas em invernadas com poucas divisoes, de forma a otimizar o uso de aguadas (Cadavid Garcia, 1986; Almeida et al., 1996). A Leptospirose e uma doenca de distribuicao cosmopolita, sendo causada por diversas sorovariedades de Leptospira interrogans que infectam...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bovine; Disease.; Bovino; Doença; Leptospirose.; Leptospira interrogans; Pantanal.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/805159

Inseminação artificial: rebanho controlado e animais melhorados.
Provedor de dados: 14
Autores: GUIMARAES, Z. F.
Tipo: Folhetos
Palavras-chave: Controlado; Bovine; Artifial insemination; Bovino; Inseminação Artificial; Rebanho.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687541

Consumo voluntário: fatores relacionados com a degradação e passagem da forragem pelo rúmen.
Provedor de dados: 14
Autores: THIAGO, L. R. L. de S.; GILL, M.
Digestão a nível de rúmen. Dinâmica da passagem.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovine; Consumption.; Bovino; Consumo; Digestibilidade; Fisiologia; Rúmen; Silagem.; Digestibility; Physiology; Silage.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/322953

Epidemiologia dos nematóides gastrintestinais em bovinos de corte do Mato Grosso do Sul.
Provedor de dados: 14
Autores: MELO, H. J. H. de; BIANCHIN, I.
Epidemiologia dos nematóides gastrintestinais em bovinos de corte do Mato Grosso do Sul.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bovine; Bovinos; Brasil; CNPGC; Doencas; EMBRAPA; Epidemioogia; Gastrointestinal; Mato Grosso do Sul; Nematode; Nematoides; Saude animal.; Bovino; Capim Jaraguá; Cerrado; Corte; Epidemiologia; Helminto; Hyparrhenia Rufa; Gado de Corte; Nematóide.; Brazil; Beef cattle; Epidemiology.
Ano: 1979
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1036139

Avaliacao de alguns fatores do meio que influenciam a adaptacao, o comportamento fisiologico e o desempenho de bovinos da raca Sindhi, nas condicoes ambientais do semi-arido brasileiro: relatorio parcial das atividades referentes ao periodo de 01/09/97 a 01/07/98.
Provedor de dados: 14
Autores: TURCO, S. H. N.
Este experimento esta sendo conduzido, no campo experimental da caatinga, Embrapa Semi-Arido, localizado no municipio de Petrolina-PE, regiao semi-arida do Nordeste brasileiro. Estao sendo utilizados 22 animais, da raca Sindhi, sendo dez femeas e doze machos, com idade variando de 1 a 4 anos. O manejo para todas as categorias animais e o mesmo utilizado pelo sistema de producao Embrapa Semi-Arido, onde sao manejadas, todo o periodo do experimento, em pastagem nativa (caatinga), durante dois a quatro meses e em pastagem cultivada (capim buffel), durante o restante do ano. As informacoes basicas para este trabalho foram: a) variaveis fisiologicas: temperatura retal (TR); temperatura da pele (TP); frequencia respiratoria (FR); b) variaveis anatomicas:...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Rca Sindhi; Comportamento fisiologico; Adaptacao; Desempenho; Semi-Arido; Bovine; Behaviour; Adaptation; Bovino; Performance; Breeds; Cattle; Physiology.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133625

Escolha de animais e formação de lotes de bovinos para sistemas de integração.
Provedor de dados: 14
Autores: MACHADO, L. A. Z.; CORREA, E. B.; VARGAS JÚNIOR, F. M. de; FEIJO, G. L. D.
bitstream/item/202751/1/36892.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Bovine; Integração; Bovino; Agricultura Sustentável; Intercropping.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112985

Árvore decisória para o controle da mastite bovina em fazenda leiteira no Pantanal.
Provedor de dados: 14
Autores: SILVA, R. A. M. S.; COSTA, A. L. V. da; SIMÕES, R.
A mastite é um processo inflamatório da glândula mamária acompanhado da redução de secreção de leite. Bactérias são, como o Staphylococcus aureus, consideradas patógeno primário e tem sido o agente isolado mais freqüentemente tanto de infecções clínicas como subclínicas. O sistema APPCC é uma abordagem sistemática para controlar potenciais perigos na produção de alimentos. É um instrumento útil para avaliar perigos e estabelecer mecanismos de controle, sempre privilegiando a prevenção. O presente estudo teve como objetivo elaborar uma arvore decisória para auxiliar na tomada de decisão no controle de mastite usando princípios da análise de perigos em pontos críticos de controle em uma fazenda leiteira, do Pantanal.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Mastite; Controle; Bovine; Disease; Control.; Bovino; Doença.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811094

Considerações sobre a saída de bovinos do município de Corumbá, MS.
Provedor de dados: 14
Autores: CADAVID GARCIA, E. A.
A pecuária bovina de corte e de vital importância no desenvolvimento socioeconômico da região do Pantanal Mato-grossense, devido a seu caráter de atividade econômica sem concorrente alternativo, pelo menos no atual estagio de desenvolvimento tecnológico. A característica típica da região, de alternância estacional e cíclica de períodos de enchentes com períodos de secas, tem gerado certa especialização da pecuária para as atividades de cria e recria desenvolvidas dentro de um esquema tecnológico rudimentar com baixos índices de desfrute e rentabilidade. O estabelecimento de uma infraestrutura de comercialização racional e eficiente e estudos sobre o escoamento da produção e preços poderão estimular o aumento da produção e da produtividade, com inegáveis...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Produto agrícola; Bovine; Agricola product.; Bovino; Comercialização.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787700

Levantamento da situacao atual da producao de touros para o Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: ROSA, A. do N.; MELO, J. de.
O Pantanal Mato-Grossense encontra-se na bacia do Rio Paraguai, estendeu-se por cerca de 250 km na direcao leste-oeste e 450 km na direcao norte-sul, perfazendo uma area total de 140.000 km2. A planicie pantaneira apresenta 80 a 200 m de altitude, sendo circundada por um planalto, com 300 a 700 m, que contribui para a planicie com agua e sedimentos. O clima e quente e chuvoso no verao e ameno e seco no inverno, com temperaturas medias de 32oC e 21oC, respectivamente. A precipitacao pluviometrica anual esta entre 1000 e 1400 mm, concentrada entre os meses de dezembro a marco. Cerca de 92% da planicie pantaneira e constituida por solos hidromorficos, sendo a maioria (70%) de baixa fertilidade natural. Em todas as sub-regioes, a estrutura fundiaria...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bovine; Cow; Production.; Bovino; Produção; Touro.; Pantanal; Cattle.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/784396

Sal mineral com ureia para bovinos na epoca seca.
Provedor de dados: 14
Autores: LOPES, H. O. da S.
bitstream/item/105884/1/comtec-37.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Epoca seca; Brasil; Supplementary feeding; Alimentação mineral; Bovine; Sal mineral; Suplementação.; Bovino; Cerrado; Nutrição Animal; Sais Minerais; Suplemento Energético; Uréia.; Suplemento Alimentar; Animal nutrition; Dry season; Brazil; Cattle; Salts; Urea.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547878

Desempenho de bovinos pantaneiros no nucleo de conservacao da fazenda Nhumirim, Nhecolandia, Pantanal: avaliacao preliminar.
Provedor de dados: 14
Autores: MAZZA, M. C. M.; TROVO, J. B. de F.; SERENO, J. R. B.; SILVA, R. A. M. S.; ABREU, U. G. P. de.
O bovino Pantaneiro, tambem denominado "tucura" ou "cuiabano", descendente do gado europeu foi introduzido no Brasil no inicio da colonizacao, desempenhou no inicio deste seculo um papel importante na economia das areas inundaveis do Pantanal Mato-Grossense. O longo processo de selecao natural por que passaram esses bovinos lhes permitiu adaptar-se ao ambiente peculiar do Pantanal, adquirindo algumas caracteristicas de adaptacao relacionadas a grande rusticidade, destacando-se resistencia a escassez de alimentos e a certas doencas. Com o objetivo de conservar e avaliar o potencial produtivo do bovino Pantaneiro, foi implantado em 1984 um Nucleo de criacao na fazenda Nhumirim, Campo Experimental da EMBRAPA, localizado na sub-regiao da Nhecolandia, Municipio...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Raca pantaneira; Bovine; Production.; Bovino; Melhoramento; Produção.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787754

SISTEMAS de produção para gado de corte: Estado do Acre.
Provedor de dados: 14
Caracterização do produto e da região. Mapa de abrangência do sistema de produção. Sistema de produção.
Tipo: Sistema de Produção (INFOTECA-E)
Palavras-chave: Sistema; Acre; Brasil; Bovine; Production; System; Brazil.; Bovino; Gado de Corte; Produção.; Beef cattle.
Ano: 1977
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/904069

SISTEMA de produção para gado de corte: Pré-Amazônia e Planalto - MA.
Provedor de dados: 14
Gado de corte. Melhoramento e manejo. Alimentação. Aspectos sanitários. Instalações. Comercialização.
Tipo: Folhetos
Palavras-chave: Bovino de corte; Sistemas de produção; Maranhão; Brasil; Bovine; Production; System; Produção; Brazil.
Ano: 1976
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/906694

Introducao de tecnologias na criacao de bovino de corte no Pantanal - sub-regiao dos Paiaguas.
Provedor de dados: 14
Autores: ALMEIDA, I. L. de; ABREU, U. G. P. de; LOUREIRO, J. M. F.; COMASTRI FILHO, J. A.
O trabalho foi baseado no acompanhamento tecnico da fazenda Campo Eunice, localizada na sub-regiao dos Paiaguas, no periodo de maio/91 a maio/95, onde foram realizados oito "trabalhos de gado", dois a cada ano (maio/junho e novembro/dezembro). As tecnologias implantadas e/ou adaptadas foram: monta controlada, formulacao mineral propria para a sub-regiao, desmama antecipada e everminacao estrategica dos bezerros desmamados. As vacas foram identificadas atraves de numeracao e os touros submetidos a dois exames andrologicos durante o periodo. Em cada "trabalho de gado" as femeas que passavam pelo curral eram visualmente classificadas como "criando/mojando" ou "solteira", proporcionando o acompanhamento de seu desempenho produtivo e reprodutivo, permitindo o...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bovino de corte; Paiaguas; Brasil; Beef cow; Bovine; Breed; Management.; Criação; Manejo; Tecnologia.; Brazil; Pantanal; Beef cattle; Technology.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/792180

Observações sobre a produção animal na região de Ouricuri-PE.
Provedor de dados: 14
Autores: PADILHA, T. N.; MIRANDA, E. E. de; SIQUEIRA, K. M. M. de.
Numa tentativa de contribuir para o conhecimento de alguns aspectos da produção animal nas regiões semiáridas do Nordeste, desenvolveu-se algumas observações na região de Ouricuri, Estado de Pernambuco, que possui um rebanho representativo para o estado.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Equino; Propriedade; Pernambuco; Bovine; Bovino; Caprino; Ouricuri; Ovino; Produção Animal; Suíno; Animal production.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/156872

Prevalencia da campilobacteriose genital bovina em touros nelore do Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: PELLEGRIN, A. O.; LEITE, R. C.; SERENO, J. R. B.; REINATO, A. P. R.; LAGE, A. P.
O retorno economico do gado de corte esta baseado na producao de bezerros, e, consequentemente dependente da eficiencia reprodutiva das matrizes. O Pantanal e, por tradicao, uma das maiores regioes de cria do pais e nos anos mais recentes tem procurado incrementar esta vocacao com investimentos em tecnologias sustentaveis e adaptadas a regiao. Entretanto, a eficiencia reprodutiva na regiao ainda e bastante baixa, sendo estimadas em 56% a taxa de natalidade e a taxa de desmama em 42% (Cadavid-Garcia, 1986). A idade a primeira cria, considerada tambem uma medida de eficiencia reprodutiva foi estimada em 4,1anos (Abreu &amp; Pena, 1996) e a proporcao de vacas inferteis no rebanho e de aproximadamente 17%, considerando-se a proporcao de femeas que passam mais...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Campilobacteriose genital bovina; Bovine; Disease; Campylobacter fetus venerealis.; Bovino; Doença.; Pantanal.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/805160

Engorda de machos bovinos em pastagem cultivada de quicuio-da-amazônia (Brachiaria humidicola) na Ilha de Marajó.
Provedor de dados: 14
Autores: SALIMOS, E. P.; LOURENÇO JUNIOR, J. de B.; CAMARÃO, A. P.; RODRIGUES FILHO, J. A.; COSTA, N. A. da; TEIXEIRA NETO, J. F.; CARVALHO, L. O. D. de M.; NASCIMENTO, C. N. B. do; HANTANI, A. K.
bitstream/item/32752/1/CPATU-BP152.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Capim quicuio-da-amazônia; Ilha de Marajó; Pará; Brasil; Bovine; Fattening; Carcass; Feed.; Alimentação; Animal; Bovino; Carcaça; Engorda; Ganho de Peso; Nutrição; Taxa de Lotação.; Amazonia; Nutrition; Stocking rate; Weight gain.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379019

Introducao de tecnologias no sistema de producao de bovino de corte no Pantanal, sub-regiao da Nhecolandia, MS.
Provedor de dados: 14
Autores: ABREU, U. G. P. de; CHALITA, L. V. A. S.; MORAES, A. S.; LOUREIRO, J. M. F.
A difusao e adocao de tecnologias no sistema de producao do Pantanal sempre constituiram pontos de estrangulamentos para o aumento da eficiencia da atividade pecuaria na regiao. Por meio do acompanhamento tecnico do retiro Chatelodo, localizado na sub-regiao da Nhecolandia, MS, no periodo de maio/1984 a novembro/1998, foi possivel avaliar o efeito da introducao de tecnologias no sistema de producao tradicionalmente realizado na regiao. O estudo foi desenvolvido durante nove "trabalhos de gado", dois a cada ano (maio/junho e outubro/novembro). As tecnologias implantadas foram: desmama antecipada, everminacao estrategica das femeas de reposicao, identificacao e acompanhamento do desempenho das matrizes, monta controlada, utilizacao de touros do plantel da...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bovino de corte; Bovine; Production; Management.; Criação; Manejo; Produção; Tecnologia.; Pantanal; Breeding; Technology.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/806084

Princípios básicos para a produção sustentável de bovinos de corte no Pantanal.
Provedor de dados: 14
Autores: SANTOS, S. A.; CARDOSO, E. L.; SILVA, R. A. M. S.; PELLEGRIN, A. O.
Manejo nutricional e das pastagens; Manejo produtivo e reprodutivo; Seleção e melhoramento; Comercialização e marketing do produto.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Sustentabilidade; Manejo sustentável; Agroecossistemas; Tecnologia de processos; Production; Sustainability; Bovine; Sustainable management; Process of technology.; Bovino; Gado de Corte; Produção.; Agroecosystems; Pantanal; Dairy cattle.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810725

Influencia da idade de desmama sobre o desempenho reprodutivo de vacas de cria, no Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: TULLIO, R. R.; ALMEIDA, I. L. de; BRUM, P. A. R. de.
A desmama de bezerros, na regiao do Pantanal Mato-Grossense, e feita geralmente, na faixa de 10 a 12 meses, quando nao ocorre naturalmente. Este procedimento provoca um desgaste nutricional excessivo nas femeas em aleitamento, retardando ou inibindo o aparecimento de cio apos o parto. A consequencia da desmama antecipada sera a reducao do periodo de aleitamento, permitindo um recuperacao mais rapida as femeas e propiciando-lhes condicoes para entrarem em cio mais cedo. Assim, podera ser reduzido o intervalo entre partos e, consequentemente, aumentando o numero de bezerros nascidos. Desta forma, procura-se promover a repeticao de cria das vacas, num periodo mais curto, por simples pratica de manejo, sem prejuizo do desenvolvimento dos bezerros.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Bovine; Bull-calf.; Bezerro; Bovino; Manejo; Reprodução.; Reproduction.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787806

Niveis de manganes, zinco e cobre nas forrageiras e no figado de bovinos na sub-regiao dos Paiaguas, Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: BRUM, P. A. R. de; SOUZA, J. C. de; ALMEIDA, I. L. de; COMASTRI FILHO, J. A.; POTT, E. B.; VIEIRA, L. M.; COSTA JUNIOR, E. M. A.; TULLIO, R. R.
O Pantanal Mato-Grossense constitui uma das mais importantes regioes criatorias de bovinos de corte do Pais. O rebanho bovino e mantido basicamente a expensas de pastagens nativas, compostas essencialmente por gramineas. Grande numero de minerais sao essenciais ao crescimento, manutencao e reproducao dos bovinos. O manganes desempenha funcao importante na constituicao dos ossos, na manutencao da capacidade funcional dos orgaos da reproducao e na formacao da hemoglobina. O zinco e importante na formacao da insulina, na espermatogenese, na manutencao da funcao cutanea e na biossintese de acido nucleicos e proteinas. O cobre participa da formacao de pigmentos pilosos, no transporte de eletrons, no aproveitamento do ferro, na sintese da hemoglobina, na...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Paiaguas; Forrageira; Bovine; Pasture.; Bovino; Cobre; Manganês; Mineral; Pastagem; Zinco.; Pantanal; Forage.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787736

Recuperação e utilização de pastagens de capim-jaraguá (Hyparrhenia rufa) na engorda de novilhos em Marabá, Pará.
Provedor de dados: 14
Autores: AZEVEDO, G. P. C. de; VEIGA, J. B. da; CAMARAO, A. P.; TEIXEIRA, R. N. G.
bitstream/item/32667/1/CPATU-BP134.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Pastagem degradada; Maraba; Pará; Brasil; Pasture degradated; Fertilizer; Phosphate; Leguminous; Bovine; Fattening.; Adubação; Alimentação; Bovino; Capim Jaraguá; Engorda; Fosfato; Hyparrhenia Rufa; Leguminosa; Nitrogênio.; Amazonia; Nitrogen.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/380483

Resistência genética de bovinos as infestações de carrapatos (Boophilus micruplus, Canestrini). III. diferença aditiva entre raças heterose.
Provedor de dados: 14
Autores: TEODORO, R. L.; LEMOS, A. de M.; OLIVEIRA, G. P. de; MADALENA, F. E.
bitstream/item/120999/1/digitalizar0008.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Heterose; Bovine; Tick.; Boophilus Microplus; Bovino; Carrapato; Resistência Genética.; Genetic resistance.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/42421

SISTEMAS de produção misto para bovinocultura de corte e ovinocultura: microrregiões da Campanha e Lagoa Mirim-RS.
Provedor de dados: 14
bitstream/item/45669/1/SID-DOCUMENTOS-88-SISTEMAS-DE-PRODUCAO-MISTO-PARA-BOVINOCULTURA-DE-CORTE-E-OVINOCULTURA-CDU-636-2.pdf
Tipo: Sistema de Produção (INFOTECA-E)
Palavras-chave: Campanha; Lagoa Mirim; Rio Grande do Sul; Brasil; Production; System; Bovine; Ovine; Brazil.; Bovino; Gado de Corte; Ovino; Sistema de Produção.; Beef cattle.
Ano: 1977
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/905088

Escolha do reprodutor.
Provedor de dados: 14
Autores: BRUSCHI, J. H.
bitstream/item/142950/1/1768.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Bovine; Reproducer.; Bovino; Leite; Reprodutor.; Milk.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/581871

Síntese da pesquisa agropecuária em Roraima.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agroflorestal de Roraima. (Boa Vista, RR).
Agricultura. Agropecuaria.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Arroz de sequeiro; Feijao caupi; Cana-de-acucar; Cowpea; Sorgun; Soybean; Carrot; Onion; Potato; Tomato; Maracock; Pineapple; Bovine; Pasture.; Abacaxi; Alface; Batata; Banana; Arroz Irrigado; Bovino; Cebola; Cenoura; Guaraná; Mandioca; Laranja; Maracujá; Milho; Pastagem; Ovino; Repolho; Soja; Sorgo.; Cabbage; Corn; Cassava; Lettuce; Sugarcane.; Sheep; Rice.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/691785

A pecuária de corte na economia sul-matogrossense.
Provedor de dados: 14
Autores: COSTA JUNIOR, E. M. A.; ARRUDA, Z. J. de; COSTA, F. P.; ROCHA, O.
Distribuição do rebanho bovino no Brasil. Sinopse da história econômica do Sul de Mato Grosso. A pecuária na arrecadação tributária do Estado. Distribuição espacial da pecuária de Mato Grosso do Sul. A expansao da pecuária bovina. Regiões de produção e suas perspectivas. Fluxo de bovinos, abate e consumo. As fazendas e seus rebanhos. Sistemas dominantes de exploração. A pesquisa agropecuária no desenvolvimento do Estado.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovino de corte; Aspecto econômico; Mato Grosso do Sul; Bovine; Economy.; Economia.; Cattle breeding.
Ano: 1983
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/317576

Envenenamento botrópico em bovinos: tratamento opcional.
Provedor de dados: 14
Autores: NOVAES, A. P. de; LUCAS, S.; ABE, A. S.; FERNANDES, W.; PUORTO, G.; ALMEIDA, I. L. de.
Envenenamento botropico em bovinos. Envenenamento por B. alternatus, B. neuwiedi, B. moojeni, B. jararacussu, B. jararaca, B.atrox.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bovinos; Envenenamento; Bovine; Diagnosis; Treatment.; Intoxicação animal; Diagnostico; Tratamento.; Poisoning; Dietary exposure.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/42739

Mineralização de bovinos e bubalinos.
Provedor de dados: 14
Autores: VEIGA, J. B. da; CARVALHO, L. O. D. de M.; TEIXEIRA NETO, J. F.
bitstream/item/34683/1/RecBas-15.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Bubalino; Bovine; Buffalo.; Bubalus Bubalis; Bovino; Mineral.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381220

Identificação e composição química de espécies de invasoras consumidas por bovinos em pastagens cultivadas em Paragominas, Pará.
Provedor de dados: 14
Autores: CAMARÃO, A. P.; SIMÃO NETO, M.; SERRÃO, E. A. S.; RODRIGUES, I. A.; LASCANO, C. E.
bitstream/item/41016/1/Boletim-Pesquisa-104-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Paragominas; Pará; Brasil; Bovine; Weed; Sown pasture.; Bovino; Animal; Composição Química; Erva Daninha; Pastagem Cultivada.; Amazonia; Chemical composition.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383597

Epidemiologia da helmintose bovina no Pantanal Mato-Grossense: 2.sub-regiao da Nhecolandia, 1978/1979.
Provedor de dados: 14
Autores: CATTO, J. B.; FURLONG, J.
O Pantanal Mato-Grossense, uma extensa planicie aluvial de aproximadamente 140.000 km2, divide-se em diversas sub-regioes de acordo com suas caracteristicas e tem como principal atividade economica a criacao de bovinos de corte. A sub-regiao da Nhecolandia se caracteriza por solos extremamente arenosos, topografia plana e presenca de muitas lagoas. A precipitacao pluviometrica media anual no local de estudo, obtida de dados coletados nos ultimos quatro anos, e de 1210 mm, sendo que 75% ocorrem de outubro a marco. A temperatura media mensal oscila entre 20 o e 30 oC. Com o objetivo de estudar a epidemiologia das nematodioses gastrintestinais dos bovinos, a UEPAE de Corumba, a partir de 1976, vem realizando necropsias mensais em bovinos para identificar as...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Helmintose; Pantanal Mato-Grossense; Nematodeo; Helminth; Bovine; Nematode.; Bovino; Epidemiologia.; Epidemiology.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787738

Diagnóstico da mastite bovina.
Provedor de dados: 14
Autores: OLIVEIRA, V. M. de.
Sintomas da mastite; Clinica; Subclinica; Celulas somaticas - definicao; Diagnostico da mastite clinica; Exame do ubere; Exame visual (antes da ordenha); Exame manual do ubere e tetas (apos a ordenha); Teste da caneca de fundo escuro ou caneca telada; Diagnostico diferencial da mastite; Lesoes das tetas; Diagnostico da mastite subclinica; Metodos de deteccao das celulas somaticas; CCS atraves de contadores eletronicos; Contagem direta em laminas (CDL); California Mastitis Test (CMT); Teste do Viscosimetro (WMT); Teste para medir a condutividade eletrica; Teste com o "Detector de Condutividade" manual; Sistema de condutividade acoplado a ordenhadeira mecanica; Como calcular o nivel de mastite em um rebanho; Mastite clinica; Mastite subclinica; Exames...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bovine; Bovinos; Control; Controle; Diagnosis; Disease; Enfermidade; Exames; Gado de leite; Mamimary gland diseases; Mastite; Mastite bovina; Symptions.; Animal; Bovino; Diagnostico; Doença; Doença Animal; Gado Leiteiro; Infecção; Mamite; Profilaxia; Sintoma.; Animal diseases; Cattle; Dairy cattle; Mastitis.; Infection.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/957987

Imunofluorescência direta: um teste sensível e especifico para o diagnóstico da Campilobacteriose genital em touros.
Provedor de dados: 14
Autores: PELLEGRIN, A. O.; FIGUEIREDO, J. F.; LEITE, R. C.; LAGE, A. P.
A Campilobacteriose Genital Bovina é uma enfermidade de caráter eminentemente venéreo causada pelo Campylobacter fetus subp. venerealis. O habitat natural deste agente é o trato reprodutivo dos bovinos; no touro ele coloniza a mucosa prepucial e na vaca a mucosa da vagina, cérvix, útero e ovidutos. Por outro lado, o C. fetus subp. fetus tem seu habitat no intestino e causa abortos esporádicos em bovinos, aborto enzoótico em ovinos e septicemia no homem (Dekeyser, 1984). C fetus é uma bactéria que interfere com a funçao reprodutiva em ungulados e são patógenos oportunistas no homem.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Campilobacteriose genital; Bovine; Disease; Bovine Genital campilobacteriosis; Bull; Imunofluorescent.; Bovino; Doença; Imunofluorescência; Touro.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/799077

Suplementacao alimentar de bovinos com misturas multiplas em pastagens de brachiaria brizantha cv. Marandu na seca.
Provedor de dados: 14
Autores: LOPES, H. O. da S.; LEITE, G. G.; PEREIRA, E. A.; PEREIRA, G.; SOARES, W. V.
Este trabalho foi realizado pela Embrapa Cerrados em uma fazenda particular, objetivando desenvolver estrategias de suplementacao alimentar de bovinos com Misturas Multiplas. Utilizou-se a ureia como substituto da proteina natural e o milho, como fonte de energia, em B. brizantha cv. Marandu, estabelecida em um Latossolo Vermelho-Escuro, textura argilosa. O experimento foi conduzido durante a seca de 1997 e durou 84 dias. Empregou-se 160 novilho Nelore, com peso medio de 175 kg arranjados em sistemas de pastejo continuo em quatro pastos, em delineamento experimental completamente casualizado, com quatro tratamentos: 1- Sal mineralizado com 38% de superfosfato triplo (Testemunha); 2- Milho triturado 30%, farelo de soja 15%, ureia 10%, sal mineralizado 35%,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: PABOV200; Energia digestivel; Bovine; Protein; Mineral suplement; Bovino: Suplemento alimentar.; Bovino; Cerrado; Forragem; Pastagem; Proteína; Suplemento Alimentar; Suplemento Mineral.; Forage.; Digestible energy.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567086

Consumo de sal e fosforo por bovinos na sub-regiao da Nhecolandia do Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: POTT, E. B.
Relata-se a medicao de consumo de mistura de sal comum com fosfato bicalcico por dois rebanhos de cria em pastagens se "salina" em duas fazendas na parte central da sub-regiao da Nhecolandia. Uma das misturas continha 38,5% de sal comum e a outra 55,6%. O acompanhamento durou dois anos. O consumo medio diario por matriz, no caso da primeira mistura, foi de 12 g de sal comum e 19 g de fosfato bicalcico; e da segunda, 19 g de sal comum e 15 g de fosfato bicalcico. Em funcao do baixo consumo de sal, recomendou-se a inclusao de palatabilizantes em suplementos minerais para bovinos dessa parte do Pantanal, a fim de induzir consumo adequado dos nutrientes minerais deficientes nas pastagens.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Nhecolandia; Bovine; Mineral supplement.; Bovino; Consumo; Fósforo; Sal; Suplemento Mineral.; Phosphorus; Sodium chloride.
Ano: 1987
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787752

Efeito das sobras de mandioca no ganho de peso de fêmeas bovinas e bubalinas.
Provedor de dados: 14
Autores: CARDOSO, E. M. R.; SALIMOS, E. P.; ALBUQUERQUE, M. de; NASCIMENTO, C. N. B. do; OLIVEIRA, R. P. de; LOURENÇO JUNIOR, J. de B.
bitstream/item/33546/1/CPATU-CirTec2.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bubalino; Suplementacao mineral; Rama; Sindi; Belem; Pará; Brasil; Bovine; Buffalo; Alimentation; Suplementation.; Alimentação; Bovino; Ganho de Peso; Mandioca; Nutrição; Raça.; Amazonia; Cassava; Branches; Nutrition; Weight gain.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375756

Os "bichos" do boi: vermes, carrapato e mosca-dos-chifres medidas de controle.
Provedor de dados: 14
Autores: BRAGA, R. M.
Tipo: Folhetos
Palavras-chave: Mosca-dos-chifres; Controle; Bovine; Disease; Horn flay; Bovino; Carrapato; Doença; Inseto.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687528

Melhoramento genético de bovinos na Amazônia.
Provedor de dados: 14
Autores: MARQUES, J. R. F.
Por que melhorar o rebanho? O que melhorar? Considerações sobre o que melhorar. Como melhorar? Porque cruzar? Por que inseminar? Cruzamento s recomendados. Seleção. Escolha de reprodutores. Escolha de matrizes. Formação de algumas racas nacionais. Esquemas gerais de cruzamentos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Melhoramento genético; Brasil; Bovine; Genetic breeding; Selection.; Bovino; Cruzamento; Seleção.; Amazonia; Crossing.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/387581

Redução da proporção touro:vaca no Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: SERENO, J. R. B.; SILVA, E. V. C. e; MORES, C. M.
Este trabalho foi conduzido com o objetivo de proporcionar alternativas de reducao da proporcao touro:vaca no Pantanal e, consequentemente, reduzir os custos de producao da pecuaria de corte regional. Utilizaram-se as proporcoes de 1:10, 1:25 e 1:40 em pastagens nativas com taxa de lotacao media de 0,28 UA/ha durante duas estacoes de monta consecutivas. A analise estatistica dos dados nao revelou efeito significativo para os seguintes fatores: ano (P=2.097), categoria animal (P=0,0773) e proporcao touro:vaca (P=8.134). Entretanto, para a variavel tipo de acasalamento (individuo ou multiplo), o sistema multiplo mostrou-se superior (P=0,0228) ao individual. Avaliou-se o impacto economico desta pratica de manejo no sistema de criacao extensivo do Pantanal e...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Manejo reprodutivo; Socioeconomia; Brasil; Reproductive management; Bovine; Production.; Bovino; Gado de Corte; Pecuária; Produção.; Brazil; Pantanal; Beef cattle.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/806083

Epidemiologia da helmintose bovina no Pantanal Mato-Grossense: 1.sub-regiao da Nhecolandia, 1976-1978.
Provedor de dados: 14
Autores: CATTO, J. B.; FURLONG, J.
O Pantanal Mato-Grossense e constituido de diversas sub-regioes com caracteristicas fitogeomorfologicas distintas. A pecuaria de corte regional e explorada em sistemas de criacao extremamente extensiva, no entanto, tem participado expressiva na producao bovina do Brasil Central. A verminose gastrintestinal, identificada como um dos principais fatores espoliativos na producao de carne, atua de forma subclinica em bovinos de corte criados extensivamente, prejudicando o desenvolvimento nas fases de cria e recria e diminuindo a resistencia a infeccoes causadas por bacterias e virus. Com o objetivo de iniciar os estudos sobre a verminose em bezerros no Pantanal, foi realizado um trabalho na fazenda Santa Rosa, situada na Nhecolandia, 100 km a leste da cidade...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Helmintose; Pantanal Mato-Grossense; Nhecolandia; Bovine; Helminth.; Bovino; Epidemiologia.; Epidemiology.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787730

Eficiencia comparativa dos tratamentos intra-uterinos para endometrite bovina.
Provedor de dados: 14
Autores: CARVALHO, M. R. de; FERREIRA, A. de M.; SA, W. F. de; CRUZ, G. M. da.
bitstream/item/143037/1/2057.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Bovine; Treatment.; Bovino; Endometrite; Tratamento.; Endometritis.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/582174

Prevencao de miiases umbilicais em bezerros criados extensivamente, no Pantanal, atraves da utilizacao de ivermectin.
Provedor de dados: 14
Autores: SERENO, J. R. B.; CATTO, J. B.; SERENO, F. T. P. de S.
A regiao pantaneira apresenta maior aptidao para exploracao de bovinos de corte na fase de cria, devido a solos geralmente fracos que, aliado a outros fatores socioeconomicos e ambientais como inundacoes limitam a implantacao de pastagens cultivadas. Nesse sistema extensivo em pastagens nativas com taxa de lotacao de 3 a 4 UA/ha e utilizacao de pouca mao-de-obra, a mortalidade neonatal de bezerros por miiases e alta, e contribui significativamente para a baixa taxa de desmama observada na regiao. A regiao e carente de assistencia tecnica veterinaria e os cuidados com o recem-nascido sao realizados, na sua grande maioria, por peoes nem sempre habilitados, gerenciados por capatazes pouco capacitados tecnicamente para a administracao de grandes propriedades....
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Miiase umbilical; Avermectina; Bovine; Disease.; Bezerro; Bovino; Doença; Sanidade Animal.; Pantanal.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/788422

Amblyomma variegatum: um novo carrapato para a América do Sul?
Provedor de dados: 14
Autores: HONER, M. R.
bitstream/item/138776/1/COT-36.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Amblyomma variagatum; America do Sul; Bovine; Deseases; Disease; Parasita; Parasite; Tick.; Bovino; Boophilus Microplus; Animal; Carrapato; Controle Biológico; Doença.; Amblyomma variegatum; Biological control.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1036687

Utilização de cana + uréia na recria de bovinos.
Provedor de dados: 14
Autores: OLIVEIRA, J. S. e.
Por que ureia?; Por que cana?; Resultados alcancados no CNPGL; A tecnologia; Como facilitar o uso da tecnologia; Resultados alcancados em fazendas comerciais; Cuidados na utilizacao de cana + ureia; Algumas informacoes sobre consumo; Algumas informacoes sobre periodo de adaptacao; exemplo pratico.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Bovine; Sugar cane.; Bovino; Cana de Açúcar; Nutrição; Uréia.; Nutrition; Urea.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/595877

Epidemiologia molecular de Anaplasma marginale em bovinos criados nos Estados de Rondônia e Acre.
Provedor de dados: 14
Autores: BRITO, L. G.; OLIVEIRA, M. C. de S.; SILVA NETTO, F. G. da; CAVALCANTE, F. A.; MARIM, A. D.; SOUZA, G. C. R. de; SILVA, J. L. da; BENITEZ, F.; MOURA, M. M. da F.
Nesse trabalho determinou-se a prevalência de A. marginale em rebanhos bovinos criados em oito microrregiões de Rondônia e quatro microrregiões do Acre através da utilização da técnica da reação em cadeia da polimerase (PCR) utilizada para amplificação de um fragmento de 458 pb do gene msp5. Verificou-se uma taxa de prevalência de 98,6% nas amostras provenientes de Rondônia e de 92,87% nas amostras provenientes do Acre. As taxas de prevalência não diferiram significativamente entre as microrregiões analisadas caracterizando os estados de Rondônia e Acre como áreas de estabilidade enzoótica para A. marginale. Através da análise do alinhamento da região de menor variabilidade do gene msp1a, identificou-se a presença de cincos tipos de isolados dessa...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Epidemiologia molecular; Bovine; Rondônia; Acre.; Anaplasma Marginale; Doença Animal; Pecuária.; Molecular epidemiology.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/709358

A campilobacteriose e tricomonose são doenças reemergentes?
Provedor de dados: 14
Autores: PELLEGRIN, A. O.
Epidemiologia; Prevalência e incidência no Brasil; Fatores e risco; Impactos econômicos; Diagnóstico; Controle.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Bovine; Disease; Campylobacter fetus venerealis; Tritichomonas foetus; Diagnostic; Control.; Bovino; Campilobacteriose; Doença; Diagnostico; Epidemiologia; Pecuária; Tricomonose.; Epidemiology.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810729

Alternativas para mineralização de bovinos em Roraima.
Provedor de dados: 14
Autores: BRAGA, R. M.
Tipo: Folhetos
Palavras-chave: Alternativa; Brasil; Roraima; Bovine; Bovino; Mineralização; Brazil; Mineralization.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687527

Taxa de natalidade no rebanho bovino no Pantanal: nutrição, sanidade e genética.
Provedor de dados: 14
Autores: CATTO, J. B.; COMASTRI FILHO, J. A.
No século XVIII com a decadência das lavras auríferas de Cuiabá, a população local passou a desenvolver a agricultura no vale do Guaporé e a pecuária na planície pantaneira, região salubre e com pastagens nativas de melhor qualidade para a criação de gado. No sentido norte-sul, todo o Pantanal foi ocupado pela pecuária de corte extensiva promovendo até as primeiras décadas do último século a indústria do charque e de outros subprodutos como crina, couro e extratos. A criação de gado floresceu tanto que na década de 40 representava 6% do rebanho nacional e 90% do então estado de Mato Grosso. Com o desenvolvimento da pecuária no Triângulo Mineiro e noroeste de São Paulo, o gado do Pantanal passou a ser comercializado "em pé" para aquelas regiões...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Sanidade; Bovine; Natality; Sanity; Genetic.; Bovino; Genética; Nutrição; Taxa de Natalidade.; Pantanal; Nutrition.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811018

Campilobacteriose genital bovina em rebanhos de corte do Estado de Mato Grosso do Sul: resultados preliminares.
Provedor de dados: 14
Autores: PELLEGRIN, A. O.; SERENO, J. R. B.; LEITE, R. C.; COSTA, G. M. da.
O estado de Mato Grosso do Sul e considerado um dos maiores criatorios de bovinos de corte do pais e sua taxa de natalidade esta entre 60 e 70%, enquanto que na regiao do Pantanal este indice e de 56% (Cadavid Garcia 1986). Rosa &amp; Melo (1995) levantando planteis de reprodutores no Pantanal indicaram que a proporcao touro:vaca utilizada varia de 1:12 a 1:17 elevando-se assim os custos de utilizacao de reprodutores melhorados. Em experimento realizado no Pantanal, Sereno (comunicacao pessoal) observou que nao existe em termos de fertilidade quando utilizadas proporcao sexual de 1:10, 1:25 e 1:40, o que confirma os resultados de Crudelli (1992) e Costa e Silva et al.(1993), podendo ser diminuida esta proporcao sem prejuizo para a produtividade do rebanho....
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Campilobacteriose genital; Bovine; Disease.; Bactéria; Bovino; Campylobacter Fetus; Doença; Vibriose.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790960

Cama de aviários na suplementação de bovinos.
Provedor de dados: 14
Autores: COSTA, N. A. da; LOURENÇO JUNIOR, J. de B.
bitstream/item/34701/1/RecBas-25.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cama de frango; Suplementacao; Bovine; Feed; Supplementation; Broiles litter.; Alimentação; Bovino; Nutrição.; Nutrition.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/378464

Engorda de novilhos anelorados em pastagens de Canarana erecta lisa, Braquiaria e Congo.
Provedor de dados: 14
Autores: SERRÃO, E. A. S.; SIMÃO NETO, M.; NASCIMENTO, C. N. B. do; VEIGA, J. B. da; GUIMARÃES, M. C. de F.
bitstream/item/70909/1/IPEAN-Comunicado27.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Braquiaria; Capim congo; Ruziziensis; Bovine; Steer; Fattening; Forage crop.; Bovino; Brachiaria Decumbens; Animal; Canarana Erecta Lisa; Echinochloa Pyramidalis; Engorda; Novilho; Pastejo; Planta Forrageira.
Ano: 1972
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376340

Carrapato dos bovinos - Boophilus microplus.
Provedor de dados: 14
Autores: BECK, A. A. H.
bitstream/item/138239/1/CIRCULAR-TECNICA-02.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Boophilu microplus; Bovine; Tick.; Bovino; Carrapato.
Ano: 1979
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/316796

Principais doenças dos bovinos em Roraima.
Provedor de dados: 14
Autores: BRAGA, R. M.
Tipo: Folhetos
Palavras-chave: Brasil; Roraima; Bovine; Disease; Bovino; Doença; Brazil.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687526

Efeito da deficiencia de alguns minerais na reproducao de bovinos.
Provedor de dados: 14
Autores: DAYRELL, M. de S.
bitstream/item/143007/1/2044.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Minerais; Bovine; Mineral defficiency.; Bovino; Deficiência; Reprodução.; Reproduction.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/582574

Simulações de estimativa da capacidade de suporte das áreas de campo limpo da sub-região da Nhecolândia, Pantanal.
Provedor de dados: 14
Autores: SANTOS, S. A.; ABREU, U. G. P. de; CRISPIM, S. M. A.; PADOVANI, C. R.; SORIANO, B. M. A.; CARDOSO, E. L.; MORAES, A. S.
Devido a complexidade e heterogeneidade de ambientes existentes no Pantanal e a dinâmica das pastagens em função das condições climáticas anuais, há a necessidade de uma metodologia prática para estimar a capacidade de suporte das diferentes fitofisionomias. Este Boletim tem como objetivo efetuar algumas simulações de capacidade de suporte de áreas de campo limpo da sub-região da Nhecolândia usando o programa Phygrow, desenvolvido pela Universidade Texas A &amp; M. Como o programa não considera mudanças na composição botânica da pastagem, foram feitas planilhas individuais para diferentes anos hidrológicos (normal, cheio e seco), cujas variáveis foram obtidas através de estudos locais e outras fontes disponíveis na literatura. Foram feitas simulações para...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Campo limpo; Nhecolândia; Bovine; Horse; Pasture; Pampas deer.; Bovino; Eqüino; Pastagem; Taxa de Lotação; Veado Campeiro.; Pantanal; Carrying capacity; Cattle.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811102

Coleta de material para diagnóstico das doenças infecciosas que interferem com a reprodução de bovinos.
Provedor de dados: 14
Autores: PELLEGRIN, A. O.; LEITE, R. C.; LAGE, A. P.; RAVAGLIA, E.
O diagnóstico de problemas reprodutivos de bovinos é uma tarefa árdua e muitas das vezes sem o resultado esperado, em função do grande número de fatores ambientais, de manejo, nutricionais e infeciosos envolvidos. A avaliação dos parâmetros nutricionais, ambientais e de manejo são muito importantes para se diferenciar problemas de causa infecciosa daqueles advindos de deficiências nutricionais ou de falhas no manejo geral ou reprodutivo dos animais. A melhora no diagnóstico de doenças infecciosas e um maior número de informações mais precisas e rápidas para o produtor e para o técnico podem ser conseguidos com emprego de alguns cuidados relativos a coleta e envio de material aos testes requisitados devem ser observados com atenção.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Doença infecciosa; Coleta; Bovine; Infection disease; Diagnostic.; Bovino; Diagnostico; Reprodução.; Reproduction.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811093

Utilização de cama-de-frango na alimentação de bovinos.
Provedor de dados: 14
Autores: RODRIGUES, A. de A.; CRUZ, G. M. D.; ESTEVES, S. N.
Composicao bromatologica; Resultados de producao animal com a utilizacao de cama de frango no Brasil; Aspectos sanitarios; Cuidados gerais; Aspectos economicos.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Alimentacao para animal; Cama de frango; Composicao bromatologica; Bovine; Animal alimentation; Animal feed; Nutrição animal; Bovino; Cama de Galinheiro.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1051758

Avaliacao de anti-helminticos em bovinos de corte no Pantanal.
Provedor de dados: 14
Autores: CATTO, J. B.; COSTA, A. F.; BARROS, A. T. M. de.
Diversos fatores podem contribuir isolada ou conjuntamente para o baixo desenvolvimento dos bovinos e, consequentemente, acarretar baixa produtividade do rebanho. As doencas que acometem o gado constituem aspecto de suma importancia em qualquer criacao, podendo-se destacar as nematodoses gastrintestinais como um dos principais problemas da pecuaria em todo pais. O presente trabalho objetivou testar a eficacia de tres diferentes anti-helminticos, em condicoes de criacao extensiva no Pantanal Mato-Grossense. A avaliacao foi realizada entre junho e agosto de 1985, na fazenda Nhumirim (sub-regiao da Nhecolandia), com bovinos nelorados, recem desmamados, idade media de 6 meses. A eficiencia dos produtos testados (levamisole subcutaneo, fembendazole no sal e...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Parasita; Bovine; Helminth.; Anti-Helmíntico; Bovino.; Pantanal.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/783972

Pesquisa agropecuária na Índia; relatório sobre as atividades desenvolvidas por vários centros de pesquisa na Índia, com especial referência para caprinos e ovinos.
Provedor de dados: 14
Autores: FREIRE, L. C. L.; PANT, K. P.
Instituto Indiano de Pesquisa veterinaria; Instituto de Pesquisa de Pastagem e Forragem; Instituto Central de Pesquisa de Caprinos; Instituto Central de Pesquisa de Ovinos e La; Universidade Rural de Haryana, Colegio de Zootecnia; Instituto Nacional de Pesquisa de Leite e Derivados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovine; Pesquisa agropecuária; Reports.; Caprino; Ovino; Bovino; Instituição de Pesquisa.; Goats; Sheep; Research; Agriculture; India.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514275

Grau de preferência e índice de valor forrageiro das pastagens nativas consumidas por bovinos no Pantanal.
Provedor de dados: 14
Autores: SANTOS, S. A.; COSTA, C.; POTT, A.; CRISPIM, S. M. A.; SORIANO, B. M. A.; ALVAREZ, J. M.; ORTIZ, A. G.
Os bovinos são criados em sistema de pastejo contínuo no Pantanal, onde tem a oportunidade de selecionar as espécies forrageiras, cuja qualidade das pastagens depende da proporção das espécies forrageiras preferidas. Este trabalho tem como objetivo avaliar o grau de preferência das forrageiras, bem como avaliar o índice de valor forrageiro das áreas de campo limpo e baixadas da fazenda Nhumirim, subregião da Nhecolândia, Pantanal. Em uma unidade de pastejo da fazenda Nhumirim foram efetuados o levantamento das espécies existentes e observação direta do comportamento de consumo por bovino, com o intuito de classificar as espécies da seguinte forma: preferida (P), desejável (D) e indesejável (I). Considerando a quantidade relativa de espécies P, D e I nas...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Bovine; Pasture; Quality.; Bovino; Dieta; Pastagem; Qualidade.; Pantanal; Cattle; Diet.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811099

Atualização sobre tricomonose genital bovina.
Provedor de dados: 14
Autores: PELLEGRIN, A. O.; LEITE, R. C.
A tricomonose é uma doença venérea de bovinos causada por um protozoário flagelado denominado Tritrichomonas foetus (T.foetus), cujo habitat é o trato genital de bovinos sendo transmitido do macho para a fêmea através da monta ou pelo uso de sêmen contaminado. O T.foetus é um protozoário de morfologia piriforme com três flagelos em posição cranial e um caudal, cujo tamanho oscila entre entre 8-18mm de comprimento e 4-9 de largura. Se caracteriza por possuir 4 flagelos, 3 deles são anteriores e livres e o 4o acompanha a membrana ondulante, que é perfeitamente visível quando em microscopia, localizando-se na parte posterior.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Tricomonose genital bovina; Patogenia; Controle; Imunoprofilaxia; Bovine; Disease; Pathogeny; Diagnosis; Control.; Bovino; Diagnostico; Doença; Epidemiologia; Imunidade; Tratamento.; Epidemiology; Immunity.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811109

Cerca de contenção para bubalinos e bovinos.
Provedor de dados: 14
Autores: CARVALHO, L. O. D. de M.; LOURENÇO JUNIOR, J. de B.; NASCIMENTO, C. N. B. do; COSTA, N. A. da.
bitstream/item/57754/1/CPATU-ComTec28.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bubalino; Buffalo; Bovine; Fence; Management.; Bovino; Bubalus Bubalis; Cerca; Manejo.
Ano: 1979
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376113

Prevalência de nematódeos gastrintestinais de bovinos, durante o período seco, em Roraima.
Provedor de dados: 14
Autores: BRAGA, R. M.; SANTOS, D. J.
Tipo: Folhetos
Palavras-chave: Periodo seco; Roraima; Bovine; Nematode; Disease; Dry period; Bovino; Doença; Nematóide.
Ano: 1983
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687501

Estudo da fertilidade de touros do Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: SERENO, J. R. B.; PELLEGRIN, A. O.
O Pantanal Mato-Grossense e um dos maiores criatorios de bovinos do Pais, onde a pecuaria e explorada extensivamente com um minimo de insumo modernos. A regiao apresenta grande potencial produtivo que, aliado ao processo tecnologico atual, constituirao fatores determinantes do desenvolvimento economico. O proposito da avaliacao da fertilidade de reprodutores e o de selecionar touros, dentro de um rebanho, que tenham potencial para causar um aumento na taxa de concepcao das vacas, em um menor periodo possivel. O trabalho teve inicio durante a estacao de monta de 1990 na fazenda Nhumirim, Campo Experimental da EMBRAPA-CPAP com o objetivo inicial de padronizacao da metodologia para posterior implantacao do estudo da fertilidade de touros nas demais...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Bovine; Production.; Bovino; Produção; Reprodução.; Pantanal; Reproduction.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787756

Produção de carne de bovinos em pastagem cultivada em terra firme.
Provedor de dados: 14
Autores: LOURENÇO JUNIOR, J. de B.; CAMARÃO, A. P.; COSTA, N. A. da; RODRIGUES FILHO, J. A.; DUTRA, S.; CARVALHO, L. O. D. de M.; NASCIMENTO, C. N. B. do; HANTANI, A. K.
bitstream/item/32747/1/CPATU-BP148.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Bovino de corte; Bovine; Fattening; Stocking; Rate; Cultivated pasture; Management.; Bovino; Engorda; Ganho de Peso; Manejo; Pastejo; Pastagem Cultivada; Taxa de Lotação.; Grazing; Beef cattle; Weight gain.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/378458

Carrapato dos bovinos: conheça bem para controlar melhor.
Provedor de dados: 14
Autores: FURLONG, J.
A vida do carrapato; A fase de vida livre; A fase parasitária; A relação dos carrapatos com o tempo; O sistema estratégico de controle; A pulverização ou tratamento; Os carrapaticidas; Carrapaticidas de contato; Forforados; Diamidínicos; Piretróides; Fipronil; Thiazolina; Carrapaticidas sistêmicos; Derivados das avermectinas; Fluazuron (inibidor do crescimento); Resistência de carrapatos a carrapaticidas; Rodízio de carrapaticida; O teste de resistência e a escolha do carrapaticida; As vacinas contra os carrapatos; O controle integrado dos carrapatos.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Animal disease; Biology; Bovinae; Bovine; Bovnie; Brasil; Central region; Control; Controle; Controle carrapato; Disease; Metastigmata; Parasita; Pests of animals; Regiao Central; Tick.; Boophilus Microplus; Bovino; Biologia; Carrapaticida; Carrapato; Controle Químico; Doença Animal; Doença; Gado Leiteiro; Gado; Parasito; Praga de Animal.; Brazil; Animal diseases; Dairy cattle; Cattle; Chemical control; Parasites.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/957979

Topography and Morphology of the Bovine Cranial Cervical Ganglion and its Branches
Provedor de dados: 77
Autores: Nourinezhad,Jamal; Mazaheri,Yazdan; Saberifar,Sedigheh.
A detailed submacroscopic anatomical study of the cranial cervical ganglion (CCG) and its branches with its adjoining structures was carried out by examining 14 halves of seven heads of Holstein cattle under a magnifying lens to provide comprehensive descriptions with color photographs of the location, relation to neighboring structures, morphometry, and morphology of CCG and its branches. Our results were compared with previously nerves including jugular nerve; internal and external carotid nerves extremely, obtained morphological data on CCG in other ungulates to clarify the detailed comparative anatomy of CCG among them. The morphology of CCG and its branches in bovine was significantly and tangibly different from that of in other reported ungulates,...
Tipo: Journal article
Palavras-chave: Anatomy; Bovine; Cranial cervical ganglion; Sympathetic nervous system.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200022

Evaluación de las contusiones y del PH en canales bovinas en un matadero de la provincia de Santa Fe
Provedor de dados: 78
Autores: Tuninetti,N.; Blainq,L.; Otero,J.L.
Las contusiones tienen un impacto negativo sobre la calidad de la carne y son una fuente importante de información sobre el bienestar animal. Las contusiones reflejan fallas en las prácticas de manejo, diseño incorrecto de las instalaciones o falta de formación del personal. La carne de pH elevado es el resultado de una depleción del glucógeno antes de la matanza y la consecuente inhabilidad para acumular ácido láctico. Esta carne tiene apariencia seca, firme y oscura (DFD= dark, firm, dry), es menos tierna, tiene defectos de palatabilidad, es poco apreciada por el consumidor y facilita el desarrollo de microorganismos. Se estudió la presencia de contusiones en las canales bovinas y los aspectos relacionados con alteraciones en la calidad de la carne, como...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Contusiones; PH; Canales; Bovinos; PH; Carcass; Bovine.
Ano: 2017
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-34982017000100004

Esterase electrophoresis of Clostridium perfringens bovine strains
Provedor de dados: 80
Autores: Baldassi,L.; Barbosa,M.L.; Bach,E.E.; Iaria,S.T.
Eighty-nine of 144 isolates of Clostridium perfringens obtained from 187 samples of 71 bovine in several Brazilian states were submitted to esterase electrophoresis for typing. Mobilites electrophoresis, as parameter, were settled down by isolates from ATCC pattern of types A, B, C, and D. Of the 89 isolates, 43 (48.3%) were characterized as electrophoretic type A, 20 (22.5%) as D, 18 (20.2%) as C, and 3 (3.4%) as B. Five (5.6%) isolates did not identity with any type. Similarly, esterase electrophoresis enabled the typing of 94.4 % of the isolates, demonstrating to be an appropriate method for animal sample analyses.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clostridium perfringens; Bovine; Electrophoresis; Esterase.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992003000200009

Virulence exaltation of Clostridium perfringens strains from bovines
Provedor de dados: 80
Autores: Baldassi,L.; Barbosa,M.L.; Bach,E.E.; Iaria,S.T.
Ten out of eighty-nine strains biochemically identified as Clostridium perfringens, isolated from bovine organs, were selected by their different results showed in toxigenicity test on mice. Those and the standard strains, ATCC types A, B, C, and D, had their virulence exalted through serial intramuscular inoculation into guinea pigs. Results showed that, for toxigenic strains (6), one or two passages were enough to cause exaltation, while for the atoxigenic (4), five or six inoculations were needed. Esterase electrophoresis of standard and isolated strains, with and without exaltation, was performed. Electrophoresis analysis permits the following conclusions: strains that do not show any clinical symptoms in mice, when exalted demonstrate decreased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clostridium perfringens; Bovine; Electrophoresis; Virulence exaltation.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992004000300007

Succession of Scarabaeidae on bovine dung in Itumbiara, Goiás, Brazil
Provedor de dados: 82
Autores: Marchiori,Carlos H.; Caldas,Elza R.; Almeida,Katia G.S.
The succession of Scarabaeidae in cattle dung deposited in pasture were observed from January to August 2001 in Itumbiara County, State of Goiás, Brazil (18º25'S; 49º13'W). Fresh cattle dung pats were exposed on a pasture area for one, two, three, four, five, six, seven, eight, nine and ten days and then taken individually to the laboratory for screening and identification of the Scarabaeidae therein present. A total of 100 dung pads were exposed in the field from which 3,229 specimens of Scarabaeidae were recovered. The most frequent species found were: Ataenius aequalis Harold and Aphodius lividus Balth. The majority of specimens were collected in cattle dung exposed for one and two days.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arthropoda; Coleoptera; Bovine; Biocontrol.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000100029

Gene Expression of 11β-HSD and Glucocorticoid Receptor in the Bovine (Bos taurus) Follicle During Follicular Maturation and Atresia : The Role of Follicular Stimulating Hormone
Provedor de dados: 19
Autores: TETSUKA, Masafumi; NISHIMOTO, Hiromi; MIYAMOTO, Akio; OKUDA, Kiyoshi; HAMANO, Seizo; 手塚, 雅文; 宮本, 明夫.
Glucocorticoids modulate ovarian function in cattle. However, their regulatory mechanisms have not been fully elucidated. In the present study, we examined gene expression of two glucocorticoid-metabolizing enzymes, a bidirectional 11β-HSD type 1 (11HSD1) and a dehydrogenase 11β-HSD type 2 (11HSD2), and glucocorticoid receptor (GR) in bovine follicles during follicular maturation and atresia. Granulosa cells (GCs) and theca interna layers (TIs) were harvested from follicles classified as small growing, dominant, preovulatory, early atretic and late atretic follicles. The expression levels of 11HSD1, 11HSD2 and GR mRNA were quantified by real-time PCR. In the healthy follicles, expression of 11HSD1 mRNA increased as follicles matured, both in GCs and TIs. A...
Palavras-chave: Bovine; Cortisol; 11β-HSD; Follicle; Glucocorticoid receptor; MRNA.
Ano: 2010
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2810

N-acetylglucosaminyltransferase I Activity of Bovine Oviduct Epithelial Cells: Stimulation by Luteinizing Hormone, Vascular Endothelial Growth Factor and Tumor Necrosis Factor α
Provedor de dados: 19
Autores: NOZAKI, Hirofumi; WIJAYAGUNAWARDANE, Missaka P.B.; KODITUWAKKU, Suranga P.; YOSHIDA, Takashi; NAKAMURA, Tadashi; ARAI, Ikichi; URASHIMA, Tadasu; MIYAMOTO, Akio; 中村, 正; 浦島, 匡; 宮本, 明夫.
N-acetylglucosaminyltransferase I (GnT I; EC 2.4.1.101), which catalyzes the first step in the conversion of oligomannose to complex or hybrid N-glycans of glycoproteins, was found in media cultured with bovine oviduct epithelial cells (BOEC) obtained from non-pregnant cows during the follicular phase. Combined treatment with specific hormones increased GnT I release from BOEC. Luteinizing hormone (LH; 10 ng/ml) alone slightly, but together with 17β-estradiol (E2; 1 ng/ml), synergistically increased GnT I activity. Vascular endothelial growth factor (VEGF) and tumor necrosis factor (TNF) α, which have been shown to have their highest activities in the bovine oviduct during the periovulatory period, also increased in GnT I activity. This study provides the...
Palavras-chave: Bovine; Luteinizing hormone (LH); N-acetylglucosaminyltransferase I; Oviduct; Tumor necrosis factor (TNF) α; Vascular endothelial growth factor (VEGF).
Ano: 2005
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2978

ウシ優性卵胞と閉鎖卵胞の卵胞液中におけるN-アセチルグルコサミニルトランスフェラーゼ I 活性の解析
Provedor de dados: 19
Autores: Nozaki, Hirofumi; Miyamoto, Akio; Hayashi, Ken-Go; Matsui, Motozumi; Yoshida, Takashi; Nakamura, Tadashi; Arai, Ikichi; Urashima, Tadasu; 宮本, 明夫; 松井, 基純; 中村, 正; 浦島, 匡.
The activity of α3-D-mannoside-β-1,2-N-acetylglucosaminyltransferase I (GnT I; EC 2.4.1.101), which catalyzes the first step in the conversion of oligomannose to complex or hybrid N-glycans of glycoproteins, was detected in bovine follicular fluid (bFF). The GnT I activity in bFF had a pH optimum of 5.8 and an absolute requirement for either Co2+, Mn2+, or Mg2+, the activity being stimulated by these cations in the above order. The apparent Km value for α1-3α1-6 mannopentaose of GnT I in bFF was 2.17 mM. The substrate specificity for the GnT I activity decreased in the following order: α1-3α1-6 mannopentaose&gt; α1-3α1-6 mannotriose&gt;α1-3 mannobiose. The GnT I activity in bFF from large atretic follicles was significantly higher than in that from large...
Palavras-chave: N-acetylglucosaminyltransferase I; Dominant follicle; Atretic follicle; Follicular fluid; Bovine.
Ano: 2004
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4185

ポータブルX線撮影装置を用いた牛の Computed Radiography 画像化因子が画質に与える影響
Provedor de dados: 19
Autores: 岸本, 海織; 住谷, 峻; 李, 奇子; 清水, 純一郎; 山川, 和宏; 滄木, 孝弘; 羽田, 真悟; 松本, 高太郎; 石井, 三都夫; 佐々木, 直樹; 猪熊, 壽; 山田, 一孝; KISHIMOTO, Miori; SUMIYA, Takashi; LEE, Ki-Ja; SHIMIZU, Junichiro; YAMAKAWA, Kazuhiro; AOKI, Takahiro; HANEDA, Shingo; MATSUMOTO, Kotaro; ISHII, Mitsuo; SASAKI, Naoki; INOKUMA, Hisashi; YAMADA, Kazutaka.
牛臨床におけるComputed Radiography (CR) の有用性を確立するため，管球-カセッテ間距離およびImaging Plate (IP) の読み取り時間が画質に与える影響について検討した.管球-カセッテ間距離は画質の視覚的スコア(粒状性，鮮鋭性)に影響しなかった. IPの読み取り時間は画質の鮮鋭性と相関しなかったが，粒状性と相関が認められた.しかし読み取り時聞が12時間以内の場合には問題にならない程度であると考えられた.管球-力セッテ間距離を再現よく保つことが難しく， IP読み取り時間のばらつきが想定される牛の臨床画像診断においてCRは有用なX線撮影システムであると考えられた. The purpose of this study was to investigate the effect of X-ray tube-cassette distance and image scanning time on image quality to establish the benefit of Computed Radiography (CR) in bovine clinical practice. The tube-cassette distance had no effect on the visual evaluation score (graininess and sharpness). The image scanning time correlated with graininess but not sharpness. From these results，it was concluded that accidental variations in the tube-cassette...
Palavras-chave: 牛; Computed Radiography (CR); フェーデイング; Imaging Plate (IP); ポータブルX線発生装置; Bovine; Computed Radiography (CR); Fading; Imaging Plate (lP); Portable x-ray generator.
Ano: 2010
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2939

Pilot Study of Bovine Interdigital Cassetteless Computed Radiography
Provedor de dados: 19
Autores: El-Sayed Ahmed Awad EL-SHAFAEY1) 2); AOKI, Takahiro; ISHII, Mitsuo; YAMADA, Kazutaka; 滄木, 孝弘; 石井, 三都夫; 山田, 一孝.
Twenty-one limbs of bovine cadavers (42 digits) were exposed to interdigital cassetteless imaging plate using computed radiography. The radiographic findings included exostosis, a rough planta surface, osteolysis of the apex of the distal phalanx and widening of the laminar zone between the distal phalanx and the hoof wall. All these findings were confirmed by computed tomography. The hindlimbs (19 digits) showed more changes than the forelimbs (10 digits), particularly in the lateral distal phalanx. The cassetteless computed radiography technique is expected to be an easily applicable method for the distal phalanx rather than a conventional cassette-plate and/or the film-screen cassetteless methods.
Palavras-chave: Bovine; Cassetteless; Computed radiography; Interdigital.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3899

Changes in the Messenger RNA Expressions of the Endothelin-1 and Angiotensin Systems in Mature Follicles of the Superovulated Bovine Ovary
Provedor de dados: 19
Autores: SHIMIZU, Takashi; BERISHA, Bajram; SCHAMS, Dieter; MIYAMOTO, Akio; 清水, 隆; 宮本, 明夫.
The aim of the present study was to examine the messenger RNA expressions of the endothelin and angiotensin systems during the periovulatory phase in gonadotrophin releasing hormone (GnRH)-treated cows. Ovaries were collected by transvaginal ovariectomy (n=5 cows/group), and the follicles (n=5, one follicle/cow) were classified into the following groups: before GnRH administration (control, before LH surge), 3-5 h after GnRH (during LH surge), 10 h after GnRH; 20 h after GnRH, 25 h after GnRH (peri-ovulation), and early corpus luteum (CL) (Days 2-3). Expression of mRNA was investigated using quantitative real-time PCR. The expression of angiotensin converting enzyme (ACE) mRNA significantly decreased immediately after onset of the LH surge and remained at...
Palavras-chave: Angiotensin; Bovine; Endothelin-1; Gonadotrophin releasing hormone (GnRH); Ovulation.
Ano: 2007
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2987

In Vivo Evidence that Local Cortisol Production Increases in the Preovulatory Follicle of the Cow
Provedor de dados: 19
Autores: ACOSTA, Tomas J.; TETSUKA, Masa; MATSUI, Motozumi; SHIMIZU, Takashi; BERISHA, Bajram; SCHAMS, Dieter; MIYAMOTO, Akio; 松井, 基純; 清水, 隆; 宮本, 明夫.
The aim of the present in vivo study was to monitor real-time fluctuations of cortisol (Cr) in the wall of preovulatory follicles using a microdialysis system (MDS) implanted in the theca layer as well as changes in ovarian venous plasma (OVP) and jugular venous plasma (JVP). Seven cows were superovulated using FSH and prostaglandin F2α injections. Dialysis capillary membranes were surgically implanted into the theca layer of mature follicles and connected to a microdialysis system. Fractions of the perfusates were collected from Day -1 (Day 0=LH surge) to Day 3. No difference in the concentrations of Cr between JVP and OVP was detected throughout the experiment. Circulating concentrations of Cr ranged from 20 to 35 ng/ml 8 h after surgery in ovulatory and...
Palavras-chave: Bovine; Cortisol; Follicle; Ovary; Ovulation.
Ano: 2005
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2980

A Field study to Estimate the Prevalence of Bovine African Trypanosomosis in Butaleja District, Uganda
Provedor de dados: 19
Autores: JING, Zhang; MAGONA, Joseph W; SAKURAI, Tatsuya; THEKISOE, Oriel M. M; OTIM, Charles P; SUGIMOTO, Chihiro; INOUE, Noboru; 井上, 昇.
Prevalence of bovine trypanosomosis was determined from a total of 203 blood samples collected from Butaleja district, eastern Uganda. All samples were examined by microhematocrit centrifuge test (MHC), PCR and ELISA. ELISA was performed in accordance with the OIE standard procedures using Trypanosoma brucei gambiense procyclic form crude antigens. PCR were utilized to identify the species and the subspecies of trypanosome. The overall prevalence of bovine African trypanosomosis was 8.9% by MHC, and 45.3% by the ELISA. Since substantial number (12 out of 18) of MHC positive samples were negative in the PCR tests, we could not conclude the most epidemic trypanosome species in the studied area. Nevertheless, the PCR results suggests that the most prevalent...
Palavras-chave: Bovine; Prevalence; Trypanosome; Uganda; Zoonotic parasite.
Ano: 2009
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2690

An Acute-phase Protein as a Regulator of Sperm Survival in the Bovine Oviduct: Alpha 1-acid-glycoprotein Impairs Neutrophil Phagocytosis of Sperm In Vitro
Provedor de dados: 19
Autores: LIU, Jinghui; A. MAREY, Mohamed; KOWSAR, Rasoul; HAMBRUCH, Nina; SHIMIZU, Takashi; HANEDA, Shingo; MATSUI, Motozumi; SASAKI, Motoki; HAYAKAWA, Hiroyuki; PFARRER, Christiane; MIYAMOTO, Akio; 羽田, 真悟; 松井, 基純; 佐々木, 基樹; 宮本, 明夫.
We have previously shown that polymorphonuclear neutrophils (PMNs) are present in bovine oviduct fluid under physiological conditions, and that the oviduct provides a microenvironment that protects sperm from phagocytosis by PMNs. Alpha 1-acid glycoprotein (AGP) is a major acute-phase protein produced mainly in the liver that has immunomodulatory functions. AGP mRNA is expressed in extrahepatic organs, such as the lung, kidney, spleen, lymph node, uterus, and ovary. Therefore, in this study, we investigated, 1) the local production of AGP in the bovine oviduct, 2) the effect of AGP on the phagocytic activity of PMNs for sperm and superoxide production and 3) the impact of AGP desialylation on the PMN phagocytosis of sperm. The AGP gene was expressed in...
Palavras-chave: Alpha 1-acid glycoprotein (AGP); Bovine; Oviduct; Phagocytosis; Sperm.
Ano: 2014
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3946

Brain Abscess in a Japanese Black Calf : Utility of Computed Tomography (CT)
Provedor de dados: 19
Autores: EL-KHODERY, Sabry; YAMADA, Kazutaka; AOKI, Daisuke; KAMIO, Kyouhei; KISHIMOTO, Miori; SHIMIZU, Junichiro; KOBAYASHI, Yoshiyasu; ISHII, Mitsuo; INOKUMA, Hisashi; YAMAUCHI, Sen-ichi; MATSUI, Takane; 山田, 一孝; 古林, 与志安; 石井, 三都夫; 猪熊, 壽.
Computed tomography (CT) was used for diagnosis of brain abscess in a 6-month-old, Japanese black calf presented with neurological dysfunction, compulsive circling and vision disturbance. CT images showed asymmetric lateral ventricles, and presence of intra-cranial multiple low absorption lesions surrounded by capsule suggestive of abscess in the right cerebral hemisphere. Postmortem examination revealed marked swelling of right cerebral hemisphere and olfactory bulb. Multilocular large abscess containing creamy pus was found to occupy most area of periventricular and lateral ventricle. Fusobacterium necrophrum was isolated from the abscess contents as the causative agent. These results demonstrate that CT is useful tool for tentative diagnosis of bovine...
Palavras-chave: Bovine; Brain abscess; CT.
Ano: 2008
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3926

Classification of Bovine Follicles Based on the Concentrations of Steroids, Glucose and Lactate in Follicular Fluid and the Status of Accompanying Follicles
Provedor de dados: 19
Autores: NISHIMOTO, Hiromi; HAMANO, Seizo; HILL, Glen Alan; MIYAMOTO, Akio; TETSUKA, Masafumi; 宮本, 明夫; 手塚, 雅文.
A simple and clear means to identify the physiological status of follicles is essential for study of follicular biology. In the present study, we verified a novel classification procedure based on analysis of the follicular population and glucose concentration in follicular fluid (FF) as an alternative method to classify bovine follicles. Paired ovaries were collected from heifers, and the number of follicles and stage of the CL were recorded. Follicles were initially divided into the following 3 groups according to diameter and the ratio of E2 and P4 (E/P): E2 active (E-A: E/P≥1), E2 inactive (E-I: E/P&lt;1, ≥8.5 mm) and small follicles (E/P&lt;1, &lt;8.5 mm). E-A follicles were easily identified as E2-rich dominant follicles and were further classified...
Palavras-chave: Bovine; Follicular fluid; Follicle classification; Glucose; Lactate; Steroid.
Ano: 2009
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2828

Accumulation of Eosinophils in the Infundibulum of the Bovine Oviduct Just after Ovulation
Provedor de dados: 19
Autores: KOWSAR, Rasoul; JIEMTAWEEBOON, Sineenard; SHIRASUNA, Koumei; SHIMIZU, Takashi; SASAKI, Motoki; KITAMURA, Nobuo; MIYAMOTO, Akio; 清水, 隆; 佐々木, 基樹; 宮本, 明夫.
This study was to investigate the localization and distribution of eosinophils (EOS) in the bovine oviduct throughout the estrous cycle. Histological studies revealed more abundant EOS in the infundibula of the oviducts ipsilateral to the preovulatory dominant follicle and the ovulated ovary. The number of EOS was higher in the infundibula of the oviducts ipsilateral to the ovulated ovary than those of the oviducts contralateral to the ovulated ovary. The infundibula of the oviducts ipsilateral to the preovulatory dominant follicle had higher number of EOS than those of the oviducts ipsilateral to the mid-cycle corpus luteum. The number of EOS in the isthmus, but not in the ampulla, was higher in the outer layers (tunica muscularis and tunica serosa) than...
Palavras-chave: Bovine; Eosinophil; Oviduct; Ovulation.
Ano: 2014
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3947

Bovine Oocytes and Early Embryos Express mRNA Encoding Glycerol Kinase but Addition of Glycerol to the Culture Media Interferes with Oocyte Maturation
Provedor de dados: 19
Autores: OKAWARA, Sumika; HAMANO, Seizo; TETSUKA, Masafumi; 手塚, 雅文.
Glycerol plays multi-functional roles in cellular physiology. Other than forming the backbone molecule for glycerophospholipid and triglyceride (TG), glycerol acts as an energy substrate for glycolysis. Spermatozoa are known to utilize glycerol for energy production, but there are no reports of this in oocytes. In this study, the value of glycerol as an energy substrate for bovine oocyte maturation (Exp. 1) and the gene expression of glycerol kinase (GK), an enzyme crucial for cellular glycerol utilization, in bovine oocytes and early embryos (Exp. 2) were examined. In Exp. 1, in vitro maturation (IVM) was conducted using synthetic oviduct fluid supplemented with/without glucose (1.5 mM) and/or glycerol (1.0 mM), and maturation rate, degree of cumulus...
Palavras-chave: Bovine; Embryo; Glycerol; Glycerol kinase (GK); Oocyte maturation.
Ano: 2009
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2829

Changes in immune serum of toxoplasma gondii following administration of T. gondii lysate antigen
Provedor de dados: 19
Autores: Yoda, Tomoko; Sakurai, Haruhisa; Igarashi, Ikuo; Omata, Yoshitaka; Saito, Atsushi; Suzuki, Naoyoshi; 依田, 知子; 櫻井, 治久; 五十嵐, 郁男; 小俣, 吉孝; 齊藤, 篤志; 鈴木, 直義.
Palavras-chave: Toxoplasma; Serum components; Bovine; Toxoplasma lysate antigen; Lymphokines.
Ano: 1990
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1569

Differences in progesterone concentrations and mRNA expressions of progesterone receptors in bovine endometrial tissue between the uterine horns ipsilateral and contralateral to the corpus luteum
Provedor de dados: 19
Autores: TAKAHASHI, Hiroto; HANEDA, Shingo; KAYANO, Mitsunori; MATSUI, Motozumi; 羽田, 真悟; 茅野, 光範; 松井, 基純.
Because the establishment of pregnancy begins at the uterine horn ipsilateral to the corpus luteum (ipsi-horn) in cattle, levels of progesterone (P4) and receptor expression in the endometrial tissue, which regulate the intrauterine environment for embryo development, may differ between the ipsi-horn and the uterine horn contralateral to corpus luteum (contra-horn). The aim of the present study was to determine the endometrial tissue P4 concentrations and nuclear progesterone receptor (PGR), progesterone receptor membrane component 1 (PGRMC1) and PGRMC2 mRNA expressions in the cranial and middle parts of the uterine horns during the luteal phase. The results showed higher endometrial tissue P4 concentrations in the cranial part of the ipsi-horn than in...
Palavras-chave: Bovine; Progesterone; Receptor; Uterus.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4364

Bovine embryo induces an anti-inflammatory response in uterine epithelial cells and immune cells in vitro: Possible involvement of interferon tau as an intermediator
Provedor de dados: 19
Autores: Talukder, Anup K.; Yousef, Mohamed S.; Rashid, Mohammad B.; Awai, Kensuke; Acosta, Tomas J.; Shimizu, Takashi; Okuda, Kiyoshi; Shimada, Masayuki; Imakawa, Kazuhiko; Miyamoto, Akio.
Recent observations suggest that the bovine uterus starts to react to the early embryo immediately after its arrival from the oviduct. The present study aimed to investigate the effect of the early developing embryo on the immune-related gene profile in bovine uterine epithelial cells (BUECs) in vitro, and to further examine the impact of conditioned media (CM), either from embryo-BUEC co-culture or embryo culture alone, on gene expression in peripheral blood mononuclear cells (PBMCs). First, BUECs were co-cultured with morulae (n = 10) for D5-D9 (D0 = IVF), and gene expression in BUECs was analyzed. Subsequently, PBMCs were cultured in CM from embryo-BUEC co-culture or D5-D9 embryo culture, and gene expression was evaluated. In BUECs, the embryo induced...
Palavras-chave: Bovine; Embryo; Immunity; Interferon tau (IFNT); Uterus.
Ano: 2017
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4532

Oral progesterone supplementation for beef cattle after insemination in TAI programs
Provedor de dados: 86
Autores: Loiola,Marcus Vinícius Galvão; Bittencourt,Rodrigo Freitas; Rodrigues,Alexandra Soares; Ferraz,Priscila Assis; Lima,Marcos Chalhoub Coelho; Carvalho,Caio Victor Damasceno; Ribeiro Filho,Antonio de Lisboa.
Abstract: The objective of this work was to evaluate the effects of supplementation with melengestrol acetate (MGA), after timed artificial insemination (TAI), on the conception rate of Nellore cows, according to cyclicity during the protocol, estrus expression between intravaginal device withdrawal and insemination, and diameter of the largest follicle at the time of insemination, in order to identify predictors of the use of MGA. Multiparous lactating cows (577) were subjected to a hormonal protocol for ovulation synchronization. On day -2 of the protocol, the animals were painted with a marker on the base of their tail. On day 0, they were evaluated for estrus expression; the preovulatory follicle diameter (POFD) was measured by ultrasonography, and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anestrous; Bovine; Fertility; Insemination; Melengestrol acetate.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000100105

CARACTERÍSTICAS DE LA PRODUCCIÓN Y COMERCIALIZACIÓN DE LECHE BOVINA EN SISTEMAS DE DOBLE PROPÓSITO EN DOBLADERO, VERACRUZ
Provedor de dados: 31
Autores: Martinez Castro,   Cesar Julio; Cotera Rivera,   Julian; Abad Zavaleta,   Jose.
The objective of the present study was to make a diagnostic and characterization of the production and marketing of bovine milk in double purpose production systems, also known as tropical dairy, in the premises of Dobladero in José Azueta Veracruz, Mexico. Thirty Milk producers from the Local Livestock Association (Asociación Ganadera Local) were interviewed from May to July 2010. The results show that the production units are common parcels, with traditional pasturage on rain-fed conditions in a dry tropical weather, and supplementary feeding during dry seasons. A mixture of Zebu and Swiss cattle breeds predominate along with other europeans; the cow milking takes place daily in the morning and manually by the same producer and with the help of their...
Tipo: Article
Palavras-chave: Bovine; Milk; Production; Marketing; Double purpose cattle raising.; Agribusiness.
Ano: 2012
URL: http://purl.umn.edu/120307

Influence of corn processing provided in the diet on the ruminal dynamics of dairy steer
Provedor de dados: 96
Autores: Vargas Junior,Fernando Miranda de; Sanchez,Luis Maria Bonnecarrère; Wechsler,Francisco Stefano; Bianchini,Waldmaryan; Oliveira,Marcus Vinicius Morais de; Schmidt,Patrick.
The objective of the present study was to evaluate the ruminal dynamics of dairy steer fed diets containing whole corn grains, grains ground into grits or whole grain treated with urea. Thus, six rumen-fistulated animals were kept in confinement and fed diets with similar contents of energy and protein. The diet was formulated with 40:60 roughage:concentrate ratio in the dry matter using sorghum silage as roughage. The experiments followed a 3 × 3 latin square design, with three animals and three periods and they were repeated eith-er two or four times depending on the studied parameter, totaling six or 12 replicates per diet. Corn grain treatment did not affect the pH of the ruminal fluid neither the ruminal degradability of dry matter, acid detergent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial activity; Bovine; In situ degradability.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000200027

Environmental and genetic effects on the lactation curves of four genetic groups of crossbred Holstein-Zebu cows
Provedor de dados: 96
Autores: Glória,Joana Ribeiro da; Bergmann,José Aurélio Garcia; Quirino,Célia Raquel; Ruas,José Reinaldo Mendes; Pereira,Jonas Carlos Campos; Reis,Ronaldo Braga; Coelho,Sandra Gesteira; Silva,Martinho de Almeida e.
The objective of this study was to evaluate the effects of genetic group and environmental factors, including farm of origin, season of calving and lactation number, on the individual lactation curves of 1,010 Holstein-Gyr, Guzerat-Holstein, Holstein-Nellore, and Holstein-Zebu F1 cows on the experimental farms of the Agricultural Research Company in Minas Gerais (Empresa de Pesquisa Agropecuária de Minas Gerais, EPAMIG). Least squares analysis and the incomplete gamma function were used to investigate differences in early milk yield, peak milk yield, time from onset to the lactation peak, persistency, total milk yield and lactation duration. The highest early yields were observed for Holstein-Gyr and Holstein-Zebu, and the lowest were observed for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; F1; Incomplete gamma function.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001100002

Antioxidants and dairy production: the example of flax
Provedor de dados: 96
Autores: Petit,Hélène V.
This manuscript reports on the main problems decreasing productivity of dairy cows (e.g. fatty liver syndrome and poor fertility) and how antioxidants could enhance it. High producing dairy cows are prone to oxidative stress, and the situation can be exacerbated under certain environmental, physiological, and dietary conditions. Antioxidants have important effects on the expression of genes involved in the antioxidant status, which may enhance animal health and reproduction. Moreover, antioxidants may contribute to decrease the incidence of spontaneous oxidized flavour in milk enriched in polyunsaturated fatty acids. Plant lignans are strong antioxidants and flax is the richest source of plant lignans. Flax lignans are converted in the mammalian lignans...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Bovine; Flaxseed; Metabolism.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009001300035

Chemical composition, fermentation, in vitro digestibility and in situ degradability of sugar cane silages with Lactobacillus, urea and agricultural byproduct
Provedor de dados: 96
Autores: Maeda,Emilyn Midori; Zeoula,Lucia Maria; Jobim,Clóves Cabreira; Bertaglia,Franciele; Jonker,Roberto Cornelis; Geron,Luiz Juliano Valério; Henrique,Douglas Sampaio.
The objective of this study was to evaluate the sugarcane silage in relation to chemical composition, pH, total losses, aerobic stability, in vitro digestibility of dry matter (IVDDM) and effective degradability (ED) of bovine and buffaloes under the following treatments (on a dry matter (DM) basis): sugarcane silage control (control), with addition of 3.3% urea; with addition of Lactobacillus buchneri (inoculate); with inoculate + 3.3% urea; with inoculate + 25.0% soybean hull, and with inoculate + 25.0% cassava byproduct meal. The experiment was analyzed through a completely randomized design with three replications, and for DM ED, a double 4 × 4 Latin square with a 4 × 2 factorial arrangement was used. The sugarcane variety was the RB-855156...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Buffaloes; Cassava byproduct meal; Lactobacillus buchneri; Soybean hulls.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001200034

Genetic diversity of four cattle breeds using microsatellite markers
Provedor de dados: 96
Autores: Machado,Marco Antonio; Schuster,Ivan; Martinez,Mário Luiz; Campos,Ana Lúcia.
Four cattle breeds (Gyr, Nellore, Guzerat and Holstein) were analyzed by amplification of genomic DNA using microsatellite loci to evaluate the genetic diversity within and among them. DNA samples of 18 animals from each breed were collected to access the genetic content of them. Allele frequencies were calculated and used to generate a Nei's genetic distance matrix what was used to build a dendrogram following UPGMA clustering. As expected, Holstein breed was the most distinct from the other breeds: 1.15 in relation to Gyr, 1.12 in relation to Nellore and 0.94 in relation to Guzerat. The closest genetic distance was 0.25 between Guzerat and Nellore. A total of 64 alleles in all four breeds were detected using nine microsatellite primers. Each breed showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; DNA; Genetic diversity; Marker; Microsatellite.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982003000100012

Oocyte development in cattle: physiological and genetic aspects
Provedor de dados: 96
Autores: Britt,Jack H.
Oocytes in cattle are formed during embryogenesis and develop within individual follicles in the cortex of the ovary. Dormant primordial follicles become active and undergo progressive development at regular intervals commencing during the late fetal stage and continuing throughout adulthood. Once activated, follicles and oocytes in a cohort either grow to maturation and ovulation or undergo atresia, ultimately depleting the ovaries of germ cells. It takes an estimated 100 days for a follicle and its oocyte to reach the mature ovulatory stage. Within an individual, number of follicles in one ovary is similar to number in the other ovary; however, there are large differences among individuals in total number of follicles present in both ovaries. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Follicle; Ovary; Oocyte; Embryo; Fecundity.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008001300013

Reactivity, performance, color and tenderness of meat from Zebu cattle finished in feedlot
Provedor de dados: 96
Autores: Ribeiro,Julimar do Sacramento; Gonçalves,Tarcisio de Moraes; Ladeira,Márcio Machado; Tullio,Rymer Ramiz; Campos,Fabrício Rodrigues; Bergmann,José Aurélio Garcia; Machado Neto,Otávio Rodrigues; Carvalho,José Rodolfo Reis de.
The objective of this study was to study the animal reactivity and correlate it with performance and meat quality of cattle finished in feedlots. A total of 20 animals of the Tabapuã breed and 20 animals of the Nellore breed were confined for 112 days: 28 days of adaptation and 84 days of data collection. Performance was determined by the average daily weight gain (ADG) and average dry matter intake (DMI) estimated through the use of indicators. On the 1st, 42nd and 84th days of the experiment, two methods were used to measure the animal reactivity: animal reactivity in mobile cage and visual reactivity during handling. The characteristics of meat quality were evaluated by the color, shear force and pH24 after slaughter (pH24). Through the study of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Meat quality; Temperament.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400025

Intake and performance of confined bovine fed fresh or ensilaged sugar cane based diets and corn silage
Provedor de dados: 96
Autores: Menezes,Gustavo Chamon de Castro; Valadares Filho,Sebastião de Campos; Magalhães,Felipe Antunes; Valadares,Rilene Ferreira Diniz; Prados,Laura Franco; Detmann,Edenio; Pereira,Odilon Gomes; Leão,Maria Ignez.
It was evaluated intake, total apparent digestibility, performance and feeding behavior of bovine fed diets constituted of corn silage, crushed sugar cane given fresh or crushed and given 72 hours after storage, ensilaged sugar cane with or without 1% of calcium oxide and concentrate at the proportion of 1% of the body weight. It was used 35 bovines, distributed in a random block design, with 5 treatments and 6 repetitions. The animals were housed in collective stalls with troughs individualized by electronic gates. The animals fed diet with corn silage presented greater intake of all nutrients and greater total digestibility of dry matter, organic matter, neutral detergent fiber and total digestible nutrients, as well as greater weight gain and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Carcass; Digestibility; Electronic gates; Feedlot; Weight gain.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000500022

Testicular shape and andrological aspects of young Nellore bulls under extensive farming
Provedor de dados: 96
Autores: Siqueira,Jeanne Broch; Oba,Eunice; Pinho,Rogério Oliveira; Guimarães,Simone Eliza Facioni; Miranda Neto,Tamires; Guimarães,José Domingos.
Aiming to determine the relationship between the frequency of testicular shape and the andrological aspects in young Nellore bulls, 18,676 animals were assessed. All andrological examinations were performed between the years 2000 and 2008. Animals were classified as able for breeding, able for breeding in natural mating system, unable for breeding and discarded. The testicular shape was classified as long, fairly long, oval-long, spherical-oval, and spherical. The analysis of Pearson correlations was performed for testicular shape with scrotal circumference, testicular volume, progressive motility, sperm vigor, major defects, minor defects and total defects. Testicles with oval shape prevailed (99.61%). It was obseved that 76.34; 66.34; 64.34; 58.33 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Semen; Testicular measurements.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300020

Specific fatty acids as metabolic modulators in the dairy cow
Provedor de dados: 96
Autores: Pires,J.A.A.; Grummer,R.R.
This review summarizes recent developments on the utilization of specific fatty acids to modulate bovine energy metabolism, with emphasis on the periparturient dairy cow. A number of experiments have assessed the effects of polyunsaturated fatty acids on bovine hepatic energy metabolism using in vitro and in vivo models. Treatment of hepatocytes with specific fatty acids altered energy metabolism in vitro. For example, linolenic acid seemed to decrease hepatocyte triacylglycerol accumulation. This effect was confirmed in vivo, using parenteral infusions of emulsions derived from different fat sources to feed-restricted non-lactating cows. Additionally, polyunsaturated fatty acids can increase whole body response to insulin, potentially enhancing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; CLA; Linseed; Fish oil; Metabolism; Polyunsaturated fatty acid.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008001300033

The effect of a voluminous concentrate proportion of full pelletized feed containing sunflower cake on the in vitro bovine ruminal digestibility
Provedor de dados: 195
Autores: Oliveira, Mauro Dal Secco de; Lew, Betina Joyce.
The objective of the present study was to determine in vitro dry matter ruminal digestibility (IVDMD),crude protein (lVDCP), neutral detergent fiber (IVDFDN) and acid detergent fiber (IVDFDA) in three different total feed mixes containing sunflower cake extracted by a cold press system. Treatments with five replications, following a fully randomized design were applied: C80V20; C70V30 andC60V40, pelletized total mix feed containing 80:20; 70:30 and 60:40% concentrate: Lucerne hay respectively. No influence of the different concentrations in IVDMS, IVDCP and IVDFDA was detected (P&gt;0.05). However, the only protein source in the concentrate was sunflower cake, which is rich in fat, and must be used according to maximum determined proportions for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Concentrate; Crude protein; Ruminal liquid; Ankom; Analyzer Vacuno; Concentrado; Líquido ruminal; Fermentador; Ankom; Proteína bruta bovinos; Concentrado; Líquido ruminal; Fermentador; Ankom; Proteína bruta.
Ano: 2002
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3294

The importance of mastitis in dairy production in Brazil
Provedor de dados: 195
Autores: Costa, Elizabeth Oliveira da.
Mastitis is an inflammation of the mammary gland that causes severe economic losses due to reduced milk production, expence on pharmaceuticals, veterinary care, discarding of milk after treatment and discarding of affected animals. This inflammatory process may have distinct origins, but all cases of economic importance are caused by microorganisms. According to their origin and means of transmission, the main etiological agents were put together in two groups, contagious microorganisms (Streptococcus agalactiae, Staphylococcus sp, e Corynebacterium bovis) transmitted mainly during rnilking and environmental microorganisms (Streptococcus uberis, Enterobacteriaceae, fungos, algae of the genus Prototheca, etc.).Clinical mastitis is characterized by visible...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mastitis; Bovine; Mammary gland; Microorganisms; Control mastite; Bovinos; Glândula mamária; Microrganismos; Controle.
Ano: 1998
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3381

Internal medicine of cloned calf. Clinical disorders observed during the first 30 days of life
Provedor de dados: 195
Autores: Birgel Junior, Eduardo Harry; Meirelles, Flávio Vieira; Maiorka, Paulo Cesar; Kubrusly, Flávia Saldanha; Ollhoff, Rudiger Daniel.
Despite all efforts during the last four years to improve cloned newborn care, the mortality rate of calf after term is still high, around 50%. Clinical symptoms observed in these cloned calf were related to severe cardiopulmonary disorders like hyperphonese, diastolic and systolic cardiac murmurs associated to dyspnea and crackling lung sounds. Due to the patency of the Foramen Ovale and Ductus Arteriosus, in which causes the mix of arterial and venous blood, the blood oxygenation in these cloned calf is compromised. In addition, cloned calf could also present increased birth weight, hypoglycemia, hypothermia, umbilical cord abnormalities, anemia, and alopecia.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cloned calf; Somatic cell nuclear transfer (SCNT); Bovine; Disease; Cardiopulmonary disorders bezerro clonado; Transferência nuclear de célula somática (TNCS); Bovino; Doença; Distúrbios cardiopulmonares.
Ano: 2011
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/379

Clinicai and laboratory changes in the dilation of the caecum in beefand dairy cattle. Analysis of 10 cases
Provedor de dados: 195
Autores: Monso, José Augusto Bastos; Mendonça, Carla Lopes de; Costa, Nivaldo de Azevêdo; de Souza, Maria Isabel; Simão, Luís Carlos Valeriano; Dantas, Franklin Roosevelt.
Although it is a digestive occurrence with a relatively low frequency, caecum dilatation, has been seen in dairy herds. The objective of this study was to analyze the clinical and laboratorial findings in ten bovines diagnosed with caecum dilatation in animals entered into the Bovine Clinic, Garanhuns Campus - UFRPE, from January of 1998 to December of 2001. Information related to feeding, management, time of the year of the occurrence, disease progression, breed, age, clinical signs, hematological findings and the ruminal fluid characteristics were collected. Ali the bovines were females, kept in a semi-intensive production system. Feed had encompassed several rations with concentrates rather than handling the fiber. The cases evolved were within a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Caecum dilatation; Ruminal fluido Vacunos; Dilatación del intestino ciego; Fluido ruminal bovinos; Dilatação do ceco; Fluido ruminal.
Ano: 2002
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3298

N-alkanes to estimate voluntary forage intake of cattle using controlled-release capsules
Provedor de dados: 63
Autores: Oliveira,Dimas Estrasulas de; Manella,Marcelo de Queiroz; Tedeschi,Luis Orlindo; Silva,Sila Carneiro da; Lanna,Dante Pazzanese Duarte.
N-alkanes have been used as internal markers in digestibility trials with ruminants and non-ruminants for more than 20 years. In this study, two trials were conducted under different feeding regimes to (i) evaluate the release rate of n-alkanes of controlled-release capsules in the rumen of rumen-cannulated steers either grazing or restrained in metabolic stalls and (ii) estimate voluntary forage intake of the same steers in metabolic stalls. Six rumen-cannulated Nelore steers were allocated to individual metabolic stalls and were fed diets with varying forage to concentrate ratios (80:20, 60:40, and 40:60; respectively). Corn silage was the only forage source. In the grazing trial, the same steers were evaluated under three feeding managements (Brachiaria...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Fecal recovery; Hydrocarbons; Markers; Dry matter intake.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000300002

Association of PIT1 genotypes with growth traits in Canchim cattle
Provedor de dados: 63
Autores: Carrijo,Sônia Mara; Alencar,Maurício Mello de; Toral,Fábio Luiz Buranelo; Regitano,Luciana Correia de Almeida.
Use of genetic markers can aid on the identification of animals with highest breeding values in beef cattle. The PIT1 gene codes for the Pit-1 transcription factor is essential for the activation of prolactin, growth hormone and PIT1 genes. This research is an investigation of the effect of PIT1-HinfI polymorphism on growth traits of 509 Canchim animals, from two lineages, GG1 and GG2. PIT1 genotypes were identified through PCR-RFLP. Genotype effect on phenotypic values for birth weight (BW), standardized weaning weight (W240), weight at 12 months of age (W365), and the average daily weight gain from birth to weaning (AGBW), and from weaning to 12 months of age (AGW12) were analyzed by the least squares method. Effects of the interaction between the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: RFLP; Bovine; Pituitary factor 1; Candidate gene.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000200002

ผลของการเสริม Ethidium bromide หรือ CuSO4 ในปฏิกิริยา Loop-mediated isothermal amplification (LAMP) ต่อการเพิ่มความแม่นยำในการคัดเพศตัวอ่อนโคเนื้อ
Provedor de dados: 106
Autores: Saruttiwong Boonkong; Chainarong Navanukraw; Tossapol Moonmanee; Jiratti Thammasiri; Vilaivan Khanthusaeng; Aree Kraisoon.
The study was conducted to determine effect of EB or CS supplements in LAMP reaction on greater accuracy of sexing cattle embryos. Bovine ovaries were collected from the slaughterhouse, oocytes were aspirated from follicles then were evaluated morphology. Oocytes were cultured in TCM-199 at 38.5 ºC 24 h. For in vitro fertilization (IVF), oocytes were co-incubated with spermatozoa at 38.5 ºC 24 h. Fertilization rate was evaluated and then the embryos were in vitro cultured until morula stage. Then, embryo samples were frozen and stored at -196 ºC. Frozen embryos (n=35) were randomly extracted for total cellular DNA and amplified by PCR method. DNA samples were stored at -20 ºC. Sexing was determined by modification of LAMP method with either 1mM EB or 1M CS...
Tipo: PhysicalObject
Palavras-chave: Cattle; Bovine; Oocyte; LAMP reaction; Loop-mediated isothermal amplificatio; Ethidium bromide; EB; CuSO4; CS; DNA; Sexing embryo; In vitro fertilization; IVF; โคเนื้อ; โอโอไซต์; ลักษณะทางสัณฐานวิทยา; การคัดเพศตัวอ่อน; เทคนิคการคัดเพศ; ดีเอ็นเอ; ความแม่นยำ.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5813

Influência do hospedeiro no perfil populacional e nas populações de ciliados do rúmen de bovinos
Provedor de dados: 104
Autores: D'Agosto,Marta; Rosa,Milden Rodrigues de Santa.
The influence of the host on the population profile and on the ciliate populations of the bovine rumen was investigated using three suckling crossbred friesian-zebu (Gir) cows, with fistulas. The genera of ciliate observed in the three hosts examined have characterized the populations as type A. The occurrence of the genera of ciliate was related to the host. lt was verified that the rumen ciliate were quantitatively influenced by inherent factors in the host animais, showing a significam difference in the total of ciliate among the hosts in ali stages of the experiment.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Entodiniomorphida; Isotrichidae; Blepharocorythidae; Bovine; Rumen ciliate populations.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000200012

Associative behaviour and antagonism of bovine rumen ciliate (Protista, Ciliophora) from Zona da Mata, Minas Gerais State, Brazil
Provedor de dados: 104
Autores: D'Agosto,Marta; Guedes,Paulo Marcos da Matta.
Aiming at obtaining the community profile and verifying the occurrence of antagonism and association among ciliates, samples of rumen content were analysed in 100 bovines soon after their death. The animals were killed at the Juiz de Fora Municipal slaughter house (Juiz de Fora, Minas Gerais State, Brazil) between August 1996 and May 1997. Ciliates occurred, respectively, in the following percents and samples number: Entodinium Stein, 1859 (50,48; 100), Diplodinium Schuberg, 1888 (5,59; 98), Eudiplodinium Dogiel, 1927 (6,91; 97), Ostracodinium Dogiel, 1927 (9,68; 95), hotricha Stein, 1859 (4,15; 93), Dasytricha Schuberg, 1888 (3,31; 93), Metadi nium Awerinzew &amp;amp; Mutafowa, 1914 (3,06; 90), Eremoplastron Kofoid &amp;amp; MacLennan. 1932 (7,39; 87),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rumen ciliate; Behaviour; Bovine; Community profile; Antagonism.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400011

Changes in hematological biomarkers of Nellore cows at different reproductive stages
Provedor de dados: 2
Autores: Oliveira, Wagner Dias Coelho de; Dias e Silva, Tairon Pannunzio; Araújo, Marcos Jácome de; Edvan, Ricardo Loiola; Oliveira, Ronaldo Lopes; Bezerra, Leílson Rocha.
This study was conducted to evaluate changes in hematological biomarkers of Nellore cows at different reproductive stages. Fifteen multiparous cows with 4 ± 1 years of age and live weight of 400 ± 50 kg were used at different stages (non-pregnant, in the initial, middle and late pregnancy, at birth, one day postpartum, 30 and 60 days postpartum). Blood collections were performed every 30 days and assayed for the following hematological biomarkers: hemogram (red blood cells, globular volume, hemoglobin, mean corpuscular volume (MCV) and mean corpuscular hemoglobin concentration (MCHC)) and leukogram (total and differential counts). The erythrogram was influenced (p &lt; 0.001) by the reproductive stages, with variation in the results obtained for the total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blood; Bovine; Erythrogram; Leukogram; Postpartum; Prepartum.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/45725

Intake and digestibility of diets containing energy sources associated with sunflower meal or urea in feedlot steers - doi: 10.4025/actascianimsci.v33i2.11049
Provedor de dados: 2
Autores: Cleef, Eric Haydt Castello Branco Van; Unesp, Jaboticabal; Ezequiel, Jane Maria Bertocco; Unesp, Jaboticabal; Fontes, Nivia Araujo; UNESP; Faturi, Cristian; UFRA, Belém; Oliveira, Priscila Neubern; UFSCAR; Stiaque, Marcelo Gil; UNESP.
The aim of this study was to evaluate the intake and total and partial digestibility of diets using corn, soybean hulls and citrus pulp associated with sunflower meal or urea in feedlot steers. Four steers ½ Aberdeen Angus vs. ½ Nellore, fitted with rumen and duodenum cannulas, with 18 months old and 360 kg of initial weight. The diets were composed of two energy sources (corn and citrus pulp) associated with two nitrogen sources (urea and sunflower meal), in a total of four treatments, with forage:concentrate ratio of 40:60. The statistical design was a Latin square with four treatments and four periods of 21 days each. The average daily dry matter intake was influenced (p &lt; 0.05) by the diets, with the highest value was observed in corn and sunflower...
Tipo: Fieldwork; laboratory analysis
Palavras-chave: Bovine; Co-products; Digestion; Energy sources; Nitrogen sources 5.04.03.00-1 Bovinos; Coprodutos; Digestão; Fontes energéticas; Fontes nitrogenadas.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/11049

Histopatology of the reproductive tract of Nellore pubertal heifers with genital ureaplasmosis
Provedor de dados: 42
Autores: PÔRTO,REGIANI; OLIVEIRA FILHO,BENEDITO; FERRAZ,HENRIQUE; CAIXETA,LUCIANO; VIU,MARCO ANTONIO; GAMBARINI,MARIA LÚCIA.
ABSTRACT In order to study and characterize the lesions in the reproductive tract of Nellore heifers naturally infected with Ureaplasma diversum and presenting granular vulvovaginitis syndrome (GVS), fragments of uterine tube, uterus, cervix, vagina and vulva of 20 animals were evaluated. The macroscopic lesions of the vulvovaginal mucosa were classified in scores of “1” mild, until “4”, severe inflammation and pustular or necrotic lesions. The histopathological evaluation was performed using scores of “1” to “4”, according to the inflammatory alterations. The fragments with severe microscopic lesions (3 and 4) were from the uterine tubes and uterus, which showed leukocytes infiltration and destruction and/or necrosis of epithelium. Alterations in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Tissue evaluation; Reproduction; Ureaplasma diversum.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602987

Oocyte activation and preimplantation development of bovine embryos obtained by specific inhibition of cyclin-dependent kinases
Provedor de dados: 45
Autores: Perecin,F.; Méo,S.C.; Leal,C.L.V.; Garcia,J.M.
The efficiency of bohemine and roscovitine in combination with ionomycin on parthenogenetic activation and initial embryonic development of bovine oocytes was studied. Two experiments were performed: in the first, different concentrations (0, 50, 75 or 100µM) and different exposure periods (2, 4 or 6 hours) to bohemine or roscovitine were tested for activation rates of in vitro matured (IVM) bovine oocytes, which were pre-exposed to ionomycin. The best treatments, 75µM bohemine and 50µM roscovitine, both for 6h, were used in the second experiment, in which IVM bovine oocytes were exposed to ionomycin, followed or not by bohemine or roscovitine treatment, and evaluated for nuclear status, activation rate and blastocyst development were assessed. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Artificial activation; Bohemine; Roscovitine; Parthenogenesis.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000200002

Effect of insulin-like growth factor-1 during in vitro oocyte maturation and in vitro culture of bovine embryos
Provedor de dados: 45
Autores: Quetglas,M.D.; Coelho,L.A.; Garcia,J.M.; Oliveira Filho,E.B.; Esper,C.R.
The effects of insulin-like growth factor-I (IGF-I) on in vitro maturation (IVM) (experiment I) and on in vitro embryo development (experiment II) of bovine oocytes fertilized in vitro, were evaluated in terms of cleavage (CR), blastocyst (BR) and hatching (HR) rates. For IVM, immature cumulus-oocyte complexes were cultured in TCM-199 medium supplemented with Hepes, sodium bicarbonate, sodium pyruvate, additives, fetal calf serum (B-199 medium) and gonadotropins (14 U/ml PMSG and 7 U/ml hCG). For embryo development, the oocytes/zygotes were cultured in B-199 medium with bovine oviduct epithelial cells in suspension under silicon oil. Treatments for in vitro culture conditions for both experiments were: 1- B-199 + 200 ng/ml IGF-I; 2- B-199 + 100 ng/ml...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Cleavage rate; IGF-I; In vitro maturation; In vitro fertilization.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352001000200014

Cisticercose em animais abatidos em Sabáudia, Estado do Paraná
Provedor de dados: 45
Autores: Falavigna-Guilherme,A.L.; Silva,K.; Araújo,S. M.; Tobias,M.L.; Falavigna,D.L.M.
The aim of this work was to verify the occurrence of bovine and swine cysticercosis in animals slaughtered at the Abatedouro Municipal de Sabáudia, Paraná State. The number of daily-abated animals, the number of animals with cysticercus and the number and location of the cysticercus in the animals in a period of twelve months were collected. From 1046 swines slaughtered none showed cysticercus, but 36/out of 389 bovines (9.3%) were contaminated. Head was the most parasited region, followed by heart, tongue and liver. The absence of contamination observed in swines and the low contamination of the bovines reinforce the efficiency of the control measures accomplished in Paraná State.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Swine; Bovine; Cysticercosis; Slaughterhouse; Paraná State.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000500036

Clinical and pathological presentation of squamous metaplasia of the rete ovarii in a Zebu cow
Provedor de dados: 45
Autores: Borges,Á.M.; Peixoto,D.G.M.; Paixão,T.A.; Santos,R.L.
Squamous metaplasia of rete ovarii is characterized by replacement of the normal cuboidal epithelium of rete ovarii by a keratinized stratified scamous epithelium, leading to accumulation of keratinized material within the tubules and cystic dilatation of rete ovarii. The present study decribes a case of scamous metaplasia of rete ovarii in a 10 year old Zebu cow, including clinical, surgical, ultrasonographic, histopathological and hormonal findings. At first ultrasound examination the cow had lightly asymmetric ovaries with follicles presenting echogenicity similar to luteinized follicular cysts. After transvaginal follicular aspiration creamy yellowish sanguineous-purulent content was recovered. After unilateral ovariectomy the ovary was sectioned and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Epidermoid cyst; Ovary; Rete ovarii; Teratoma.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000100017

Evaluation of muscle tissue and liver glycogen of cattle submitted to transport over long distances and subjected to emergency slaughter
Provedor de dados: 45
Autores: Burns,L.V.; Ramos,A.T.; Veiga,A.P.M.; Moron,S.E.; Cordova,F.M.; Miotto,F.R.C.; Viana,E.B.; Zimermann,F.C.; Minharro,S.; Stefanine,N.R.; Sousa,L.F.
ABSTRACT The study evaluated the effect of transportation over long distances on cattle muscle tissue of submitted to emergency slaughter in slaughterhouses in northern Tocantins, Brazil. The evaluations consisted in pH, muscle and liver glycogen, muscle histopathology and creatine kinase (CK), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activity. Animals were placed into two groups: Experimental Group (EG), consisting of 19 bovines intended for immediate emergency slaughter, and Control Group (CG), composed of 24 bovines slaughtered in accordance with the normal flow. CK and ALT levels were high in EG. AST did not differ between groups. EG showed higher muscle pH and mean of degenerate fibers, mainly on the intercostal. However,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Muscle degeneration; Muscle glycogen; Stress; PH.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000301067

Modified E-test by the addition of EDTA-Tris and dimethyl sulfoxide on the potentiation of the effects of some antimicrobials in Pseudomonas aeruginosa strains isolated from bovine mastitis
Provedor de dados: 45
Autores: Ribeiro,M.G.; Siqueira,A.K.; Langoni,H.; Paes,A.C.; Victória,C.; Silva,A.V. Da; Listoni,F.J.P.; Souza,A.H.
A concentração inibitória mínima-MIC em 30 estirpes de Pseudomonas aeruginosa isoladas de mastite bovina foi avaliada utilizando o E-test padrão e o método modificado, pela adição de Tris-EDTA e DMSO. Os métodos modificados apresentaram redução significativa da MIC das estirpes utilizando a gentamicina, a ciprofloxacina e a norfloxacina.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Mastitis; Pseudomonas aeruginosa; Minimal inhibitory concentration.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000500017

Interferon tau secretion in cattle embryos in vitro fertilized before and after cryopreservation
Provedor de dados: 45
Autores: Araújo,M.C.C.; Vale Filho,V.R.; Ferreira,A.M.; Sá,W.F.; Barreto Filho,J.B.; Camargo,L.S.A.; Serapião,R.V.; Silva,M.V.G.B.
The effect of cryopreservation in IFN-tau, from bovine embryos produced in vitro was evaluated. Two treated groups (G1= fresh bovine embryos, n=59 and G2= freezed embryos, n=84) were used to study the effect of cryopreservation on IFN-tau secretion. After reaching the blastocyst phase, the embryos were kept on individual culture for additional period of 7 days. On days 3 and 7 after the beginning of embryos cultivation, samples of the media culture were taken for IFN-tau secretion titration. Oocysts taken from follicles ranging from 3 to 5mm in diameter were obtained from ovaries of females at slaughterhouse. The embryos were frozen, after being dehydrated with ethylene glycol (1.8m), conditioned on 0.5ml palletes and frozen. Frozen embryos secreted lower...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Embryo; PIV; Interferon-tau.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600008

Hematological and immunological development from birth to six months of age in Holstein calves
Provedor de dados: 45
Autores: Baccili,C.C.; Oliveira,S.M.F.N. de; Costa,J.F.R; Massoco,C.O.; Pozzi,C.R.; Gomes,V.
ABSTRACT The hematological and immunological development of calves from birth to 6 months of age was performed by hemogram and cellular phenotype. Ten male Holstein calves were assessed in 13 moments: before colostrum intake (D0), every 2 days until the 10th day of life (D2 to D10), at the 15th day after birth (D15), and then monthly up to 6 months (D180). Calves presented hemoconcentration on day (D) 0 and showed a gradual decrease in hematimetric rates until D180. The inversion of the neutrophilic for lymphocytic profile was observed on D4. The percentage of CD3+ cells on D10 was higher than D30 up to D180. The number of CD4+ and CD8+ cells did not change between time points. The number of CD21+ lymphocytes was significantly higher at early time points...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Immune system; Leukogram; Immunophenotyping; Flow cytometry.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000601823

Comparative validation using quantitative real-time PCR (qPCR) and conventional PCR of bovine semen centrifuged in continuous density gradient
Provedor de dados: 45
Autores: Resende,M.V.; Lucio,A.C.; Perini,A.P.; Oliveira,L.Z.; Almeida,A.O.; Alves,B.C.A.; Moreira-Filho,C.A.; Santos,I.W.; Hossepian de Lima,V.F.M.
The objective of the present study was to determine the sperm enrichment with X-bearing spermatozoa, after one centrifugation in a Percoll or OptiPrep continuous density gradient, using quantitative real-time polymerase chain reaction (qPCR) of sperm DNA and resultant in vitro-produced bovine embryos by PCR. Frozen/thawed sperm was layered on density gradients and the tubes were centrifuged. Supernatants were gently aspirated and the sperm recovered from the bottom of the tubes. Cleavage and blastocyst rates were determined through in vitro production of embryos and PCR was performed to identify the embryos' genetic sex. A difference in blastocyst rate was found in the Percoll treatment compared to OptiPrep (P&lt;0.05). The percentage of female embryos in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Sperm sexing; Centrifugation; Embryo sexing; QPCR; PCR.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000300002

Winter dysentery in cows associated with Bovine Coronavirus (BCoV)
Provedor de dados: 45
Autores: Brandão,P.E.; Gregori,F.; Sforsin,A.J.; Villarreal,L.Y.B.; Jerez,J.A.
Descreve-se a pesquisa de BCoV e rotavírus em 13 mostras fecais de vacas de surtos de disenteria utilizando uma nested PCR dirigida ao gene RdRp e PAGE, respectivamente. Todas as amostras fecais foram positivas para BCoV e nenhuma delas apresentou-se positiva para rotavírus em PAGE. O encontro de coronavírus bovino em amostras fecais de vacas com disenteria sugere que este vírus possa ser o agente primário envolvido na etiologia dos casos aqui relatados.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Bovine; Winter dysentery; Coronavirus; PCR; Diagnosis.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000400038

Effect of somatotropin on survival and diameter of bovine preantral follicles
Provedor de dados: 45
Autores: Silva,T.F.; Costa,S.L.; Costa,E.P.; Guimarães,J.D.; Queiroz-Castro,V.L.D.
ABSTRACT The aim of this study was to evaluate the effect of Recombinant bovine somatotropin (rbST) on survival and diameter of bovine preantral ovarian follicles (PAOF) cultured in vitro. Ovaries were collected from adult cows and fragments of ovarian cortex were immediately fixed (non-cultured control) or cultured in vitro in α-MEM+ alone or containing 10, 50, 100 or 1,000ng/mL rbST. The fragments were processed for Classical Histology and Transmission Electron Microscopy. After one and seven days of culture, the percentage of normal follicles in the non-cultured control was superior (P&lt; 0.05) to the follicles cultured in α-MEM+ alone or with different rbST concentrations. The oocyte and follicular mean diameter did not increase during the culture for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; In vitro culture; Somatotropin; Preantral follicles.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000501445

Occurrence of Mycobacterium avium subsp. paratuberculosis in coalho cheese in the State of Pernambuco, Brazil
Provedor de dados: 45
Autores: Albuquerque,P.P.F.; Cezar,R.D.S.; Pinheiro Junior,J.W.; Grazielle Nascimento,G.; Santos,A.S.; Mota,R.A.
ABSTRACT Paratuberculosis is a chronic and incurable disease that affects ruminants and other domestic animals. It is caused by Mycobacterium avium subsp. paratuberculosis (MAP) that may also be involved in some human diseases such as Crohn's disease, type 1 diabetes, sarcoidosis, multiple sclerosis, and Hashimoto's thyroiditis. The objective of this study was to investigate the occurrence of MAP DNA in samples of artisanal coalho cheese purchased in the State of Pernambuco. Forty samples of coalho cheese submitted to the Real Time Polymerase Chain Reaction (qPCR) technique were analyzed for the detection of the MAP region IS900. 11 (27.5%) were positive with a mean of 195.9 MAP colony forming unit (CFU) per gram of each sample, with a minimum of 30.3...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; IS900; QPCR; Paratuberculosis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000601917

Dominant follicle removal by ultrasound guided transvaginal aspiration and superovulatory response in Nellore cows
Provedor de dados: 45
Autores: Gradela,A.; Esper,C.R.; Matos,S.P.M.; Lanza,J.A.; Deragon,L.A.G.; Malheiros,R.M.
The present study analyzed the physiological significance of the dominant follicle (DF) and its removal on the superovulatory response of 42 Nellore cows and tested the hypothesis that the number of subordinate small follicles (3-8mm) could be used as a single criterion for the evaluation of the presence or absence of a DF in the ovaries. Ultrasonographic examinations were performed two days before the beginning of superovulatory treatment (D0) and the cows divided into three groups: group without DF (NDF), group with a DF (DF) and group with an aspirated DF (ADF). The superovulatory response of the donors did not differ between groups, but the rate of embryonic viability was higher in NDF (69.40%) and ADF (68.99%) groups compared to DF (48.54%). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Nellore; Dominant follicle aspiration; Superovulatory response.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352000000100013

Uveitis due to anaplasmosis in a newborn Holstein calf
Provedor de dados: 45
Autores: Laus,J.L.; Ortiz,J.P.D.; Vicenti,F.A.M.; Brito,F.L.C.; Wehrle,L.M.; Castro Netto,A.; Lisbão,C.B.S.
Relata-se o caso de um bovino com, aproximadamente, seis horas de vida, apresentando histórico de febre, apatia, inapetência e desconforto ocular. No exame oftálmico rotineiro, encontraram-se valores do teste da lágrima de Schirmer aumentados, diminuição da pressão intra-ocular, hemorragia conjuntival, uveíte anterior, edema corneal e injeção ciliar em ambos os olhos. Coletou-se amostra de sangue para realização de esfregaço sangüíneo, hemograma e bioquímica sérica. No esfregaço visibilizaram-se corpúsculos de Anaplasma marginale em hemácias parasitadas. Quanto à bioquímica sérica, não foram observadas alterações. Os mesmos exames foram realizados na mãe do animal tendo como resultado a positividade para A. marginale. Para o controle da uveíte foi...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Holstein; Uveitis; Anaplasmosis.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000600038

Effect of Rolipram on in vitro maturation, gene expression and embryonic development in bovines
Provedor de dados: 45
Autores: Santana,B.B.; Sobral,G.G.; Gomes,E.T.; Batista,A.M.; Teixeira,L.P.R.; Tavares,K.C.S.; Bertolini,M.; Carneiro,G.F.
ABSTRACT The aim of this work was to evaluate the effect of the Rolipram during the maturation of bovine oocytes and gene expression of embryos produced in vitro. Bovine ovaries were collected in slaughterhouse. The COCs were selected and divided into 5 groups: Control 0 time; Control: IVM for 24 hours; Rolipram treatments with IVM blocking for 24 hours in maturation medium containing (100, 150 and 200µM). After 24 hours all groups were reseated in IVM for another 24 hours. Subsequently COCs were subjected to the same IVM system and fertilized, being checked for cleavage post fertilization and for blastocyst. In addition, performed expression of the following genes: Mater, BMP15 and Bax. No difference was found in gene expression. Of oocytes evaluated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Rolipram; IVF; IVM; Oocyte.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000501433

Effect of an energy-deficient diet on populations of ciliate protozoans in bovine rumen
Provedor de dados: 45
Autores: Soares,P.C.; Martinele,I.; D'Agosto,M.; Maruta,C.A.; Sucupira,M.C.A.; Antonelli,A.C.; Mori,C.S.; Ortolani,E.L.
Ten young rumen-cannulated crossbred steers were randomly divided into two groups: a control group (C; n=4), which was fed a balanced diet for daily weight gain of 900g; and a pronounced energy-deprived group (PED; n=6), receiving 30% less of the required energy for maintenance. After 140 days of these alimentary regimes, rumen fluid and urine samples were collected for biochemical and functional tests, before feeding and at 1, 3, 6, and 9 hours after feeding. The energy-deprivation diet caused a significant reduction in the number of Entodinium, Eodinium, Isotricha, Dasytricha, Eremoplastron, Eudiplodinium, Metadinium, Charonina, Ostracodinium, and Epidinium protozoa. There was no effect of the time of sampling in both groups on the total number of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Rumen; Energy deprivation; Ruminal metabolism.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000100021

Placental maturation and expulsion in Holstein and Nelore cows
Provedor de dados: 45
Autores: Martins,V.M.V.; Marques Junior,A.P.; Vasconcelos,A.C.; Martins,E.; Santos,R.L.; Lima,F.P.C.
Morphological changes in the placenta at periparturition and the involvement of apoptosis controlling cell populations in the placentome were evaluated in Holstein and Nelore cows. Twenty-two Holstein cows at the end of gestation with normal non-induced parturition (group I) and 10 Holstein cows with induced parturition (group II) were used in this study. In addition, groups III and IV were constituted by 10 Nelore cows at the end of gestation with normal non-induced parturition and 21 Nelore cows with induced parturition, respectivelly. Binucleate trophoblastic cells, epithelial caruncular cells and apoptotic bodies were quantified by light microscopy. Apoptosis was further evaluated by transmission electron microscopy, ELISA and DNA electrophoresis in...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Bovine; Placentome; Binucleate cell; Epithelial cell; Apoptosis.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000200004

Polymorphisms of the coding region of Slc11a1 (Nramp1) gene associated to natural resistance against bovine brucellosis
Provedor de dados: 45
Autores: Paixão,T.A.; Martinez,R.; Santos,R.L.
Brucelose bovina causada por Brucella abortus é uma importante doença zoonótica, caracterizada pela ocorrência de aborto durante o último trimestre da gestação, o que resulta em diminuição da fertilidade da produção de leite em vacas. A identificação de genes associados à resistência natural contra brucelose tem sido investigada com o objetivo de selecionar animais resistentes à doença. Em bovinos, é controversa a resistência natural contra B. abortus associada ao polimorfismo da região 3' UTR do gene Slc11A1 (Nramp1). Polimorfismos localizados na sequência codificadora de Slc11A1 têm sido identificados em bovinos, contudo a influência sobre a resistência natural contra brucelose não é conhecida. No presente estudo, três novos polimorfismos do gene Slc11A1...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Bovine; Brucellosis; Natural resistance; Nramp1; Slc11a1.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000400041

Impaired protamination and sperm DNA damage in a Nellore bull with high percentages of morphological sperm defects in comparison to normospermic bulls
Provedor de dados: 45
Autores: Carreira,J.T.; Trevizan,J.T.; Kipper,B.H.; Perri,S.H.V.; Carvalho,I.R.; Rodrigues,L.H.; Silva,C.; Koivisto,M.B.
The routine semen evaluation assessing sperm concentration, motility and morphology, does not identify subtle defects in sperm chromatin architecture. Bulls appear to have stable chromatin, with low levels of DNA fragmentation. However, the nature of fragmentation and its impact on fertility remain unclear and there are no detailed reports characterizing the DNA organization and damage in this species. The intensive genetic selection, the use of artificial insemination and in vitro embryo production associated to the cryopreservation process can contribute to the chromatin damage and highlights the importance of sperm DNA integrity for the success of these technologies. Frozen-thawed semen samples from three ejaculates from a Nellore bull showed high...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Bovine; Chromatin integrity; Protamine; Sperm morphology.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000200417

Bovine demodicosis: a case report
Provedor de dados: 45
Autores: Lemos,L.S.; Santos,A.S.O.; Sales,L.G.; Silveira,L.S.; Carvalho,E.C.Q.
Tissues samples collected at necropsy from a 9 year-old Holstein cow were fixed in buffered 10% formalin for histological examination. Macroscopic finding did not reveal typical nodular cutaneous lesions. Vulvar microscopic sections of cutaneous tegument showed mites (Demodex bovis), alone and grouped in hair follicles and sebaceous glands.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Demodicosis; Parasitosis; Dermatopathology.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600004

Molecular characterization of Malassezia sympodialis and Malassezia furfur from cattle with and without otitis
Provedor de dados: 45
Autores: Duarte,E.R.; Hamdan,J.S.
A molecular study of Malassezia strains isolated from cattle with or without otitis was carried out by random amplified polymorphic DNA analysis (RAPD). DNA was extracted and purified from nine strains of Malassezia sympodialis and fourteen of Malassezia furfur. These microorganisms were collected from eight different bovine herds in Minas Gerais state, Brazil. The RAPD analysis and phenograms did not show the formation of genetically distinct groups among the strain isolated from cattle with or without otitis raised in the same herds. Genetic heterogeneity was observed among Malassezia strains from different geographic origins. These data suggest that genetically similar M. sympodialis and M. furfur strains found as members of the normal ear microbiota...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Otitis; Malassezia spp.; RAPD.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000400001

Cryotop and development of vitrified immature bovine oocytes
Provedor de dados: 45
Autores: Hajarian,H; Wahid,H; Rosnina,Y; Daliri,M; Dashtizad,M; Karamishabankareh,H; Abas Mazni,O.
The effectiveness of different cryodevices (open-pulled straw (OPS), electron microscopy grid (EMG), and Cryotop was evaluated for vitrification of immature bovine oocytes. Polar body, metaphase II stage (MII), survivability, and subsequent developmental rates were determined. Only oocytes with four or five layers of cumulus cells were used. Oocytes were equilibrated in two vitrification solutions - 1: 10% DMSO + 10% ethylene glycol (EG) for 30-45sec and 2: 20% DMSO + 20% EG +0.5M sucrose for 25sec -, mounted on one of the cryodevices and directly plunged into liquid nitrogen for 10 days. Immature vitrified oocytes using Cryotop showed the highest rates of polar body extrusion (PB) and nuclear maturity (MII); 41 and 58% respectively. Vitrified oocytes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Immature oocyte; Vitrification; Cryodevice.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000100011

Effect of concentration and exposure period to butyrolactone I on meiosis progression in bovine oocytes
Provedor de dados: 45
Autores: Adona,P.R.; Leal,C.L.V.
The effect of concentration and exposure period of bovine oocytes to butyrolactone I (BLI) on meiotic block and in vitro maturation (IVM) kinetics was studied. In experiment 1, all oocytes were at germinal vesicle stage (GV), after 6h in culture with 0, 50 and 100µM BLI. After 12h, all oocytes cultured with 50 and 100µM BLI remained in GV. After 24h, less oocytes were in GV with 50µM (82%) than with 100µM BLI (99%, P&lt;0.05). In experiment 2, after 6h IVM, 93% of control oocytes (IVM only) were in GV, while treated oocytes (100µM BLI for 6, 12 or 24h prior to IVM) showed less oocytes in GV with increased exposure period to BLI prior to IVM (83 and 73%, for 6h and 12h, P&lt;0.05). For a 24h inhibition, GV rates were similar to 12h (70%, P&gt;0.05). After...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Meiosis; Oocyte; Butyrolactone I; Kinetics; Nuclear maturation.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000300011

Bovine placentome preservation for light microscopy evaluation
Provedor de dados: 45
Autores: Martins,E.; Martins,V.M.V.; Marques Júnior,A.P.; Vasconcelos,A.C.; Chiarini-Garcia,H.; Malard,P.F.
This work evaluates the preservation of bovine placentomes using paraformaldehyde and glutaraldehyde at 4% and solutions of Karnovsky, Bouin and Carnoy for 4, 12 and 24 hours fixation, at room temperature or at 4ºC, before inclusion in plastic resin and paraffin. The best preservation of the specimens was obtained after 12 hours of fixation with those solutions containing aldehydes. With Bouin solution the best time of fixation was 4 hours, while for Carnoy solution the best time of fixation was 24 hours. Inclusion in plastic resin gave better results than in paraffin, and the temperature did not influence the quality of preservation of the specimens of bovine placentomes for evaluation with light microscopy.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Placentome; Light microscopy.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352000000200006

SNPs rs471462296, rs456245081 and rs438495570 in the 5’UTR region of DGAT1 gene in Nelore
Provedor de dados: 45
Autores: Freire,K.M.B.; Silva,C.C.; Duarte,S.S.M.; Teodoro,L.S.; Costa,E.O.A.; Silva,D.C.; Godoy,F.R.; da Cruz,A.D.; da Cruz,A.S.
RESUMO O objetivo desta pesquisa foi avaliar os SNPs rs471462296, rs456245081 e rs438495570 do gene DGAT1 em bovinos Nelore. Foram analisados 109 bovinos. A extração do DNA genômico foi realizada do sangue dos animais, usando-se o kit Ilustra Blood Genomic Prep Mini Spin® (GE Healthcare, UK). A concentração e o grau de pureza do DNA foram determinados por meio de espectrofotômetro (Nanodrop - Thermo Fisher Scientifc, USA). A genotipagem dos SNPs ocorreu mediante o emprego do ensaio Taqman® (Applied Biosystems, USA). Na análise genômica, não foram encontradas alterações nas frequências alélicas e genotípicas (P≥0,05) para os SNPs testados. Dessa forma, a região 5’UTR analisada apresentou-se monomórfica e a variação de SNPs não foi observada, o que limita...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Bovine; Phenotype; Genotype; Selection.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000200720

Development and evaluation of accessories to improve the posture of veterinary surgeons in surgical procedures conducted in the field
Provedor de dados: 45
Autores: Vulcani,V.A.S.; Silva,L.A.F.; Rabelo,R.E.; Silva,O.C.; Mendes,L.A.; Freitas,S.L.R.; Rabbers,A.S.; Assis,B.M.
ABSTRACT The study was conducted based on the information collected on rural properties in the state of Goiás, during practical classes of Surgical Clinic in Large Animals at the Veterinary Hospital of the Escola de Veterinária e Zootecnia of the Universidade Federal de Goiás and during the implementation of outreach projects developed by the institution. An acropostite-phimosis surgical procedure in the bulls in the field was selected, lasting over 30 minutes and requiring movements, posture and strength on the part of the surgeon. Devices were proposed and developed to provide improved comfort and safety to surgeons. The first device was a stool to be used by the professional during the execution of the surgical intervention. The use enabled the surgeon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Surgery; Diseases; Postoperative.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000501301

Reactive oxygen species in bovine embryo in vitro production
Provedor de dados: 47
Autores: Dalvit,G.C.; Cetica,P.D.; Pintos,L.N.; Beconi,M.T.
Oxidative modifications of cell components due to the action of reactive oxygen species (ROS) is one of the most potentially damaging processes for proper cell function. However, in the last few years it has been observed that ROS participate in physiological processes. The aim of this work was to determine ROS generation during in vitro production of bovine embryos. Cumulus-oocyte complexes were recovered by aspiration of antral follicles from ovaries obtained from slaughtered cows and cultured in medium 199 for 22 h at 39ºC in 5% CO2: 95% humidified air. In vitro fertilization was carried out in IVF-mSOF with frozenthawed semen in the same culture conditions and embryo in vitro culture in IVC-mSOF at 90% N2: 5% CO2: 5% O2. ROS was determined in denuded...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Reactive oxygen species; Oxidative stress; Oocyte; Embryo; Bovine.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452005000200009

Hematological and cerebrospinal fluid changes in cattle naturally and experimentally infected with the bovine herpesvirus 5
Provedor de dados: 52
Autores: Lisbôa,Júlio Augusto Naylor; Isernhagen,Allan Jürgen; Borges,Alexandre Secorun; Amorim,Rogério Martins; Balarin,Mara Regina Stipp; Lunardi,Michele; Alfieri,Amauri Alcindo.
Bovine herpesvirus 5 (BoHV-5) meningoencephalitis is one of the main causes of mortality by encephalopathy in Brazilian cattle herds. However, the neurological signs observed are common to several encephalopathies and do not contribute decisively to a diagnosis. In order to verify hematological and cerebrospinal fluid (CSF) changes, blood and CSF samples from naturally and experimentally infected bovines were evaluated. In natural cases (n=17), the samples were collected only once, and in experimental cases (n=7), the samples were sequentially obtained throughout disease progression. While routine methods were used to examine the samples, BoHV-5 infection was confirmed by a PCR assay. Blood analyses did not reveal any consistent hematological alterations...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Meningoencephalitis; Herpesviruses; Complete blood count; Cerebrospinal fluid; Diagnosis.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700010

Aspectos relacionados à precocidade sexual em bovinos machos da raça Nelore, PO
Provedor de dados: 52
Autores: Silva,Antonio E. D. Feliciano; Unanian,Maria M.; Silva,Alzira Roza e.
O estudo foi desenvolvido em 79 bovinos machos da raça Nelore, PO, de dez a 16 meses de idade. Em todos os animais foram medidas a circunferência escrotal (CE), a concentração de testosterona (Testo) e o aparecimento dos primeiros espermatozoides no ejaculado. Os resultados indicaram que 18,5 % dos machos em estudo apresentaram os primeiros espermatozoides aos 306,17± 2,42 dias de idade, 19,75± 0,9 cm de circunferência escrotal, e uma concentração de testosterona de 1,57± 0,9 ng/ml. Após o aparecimento dos primeiros espermatozoides no ejaculado, os machos mostraram a puberdade aos 365,39± 1,13 dias e a maturidade aos 487,38± 3,08 dias. Estes resultados indicam que existem machos na raça Nelore, PO que iniciam a atividade sexual em idades inferiores às...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Age of first spermatozoa; Scrotal circumference; Puberty; Bovine; Nelore breed.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000400016

Validation of a PCR Assay for Chlamydophila abortus rRNA gene detection in a murine model
Provedor de dados: 52
Autores: Silva-Zacarias,Francielle Gibson da; Alfieri,Amauri Alcindo; Spohr,Kledir Anderson Hofstaetter; Lima,Bruna Azevedo de Carvalho; Negrão,Fábio Juliano; Lunardi,Michele; Freitas,Julio Cesar de.
Chlamydophila abortus (C. abortus) is associated with reproductive problems in cattle, sheep, and goats. Diagnosis of C. abortus using embryonated chicken eggs or immortalized cell lines has a very low sensitivity. Polymerase chain reaction (PCR) assays have been used to detect C. abortus infection in clinical specimens and organ fragments, such as placenta, fetal organs, vaginal secretions, and semen. The aim of this study was to develop a PCR assay for the amplification of an 856-bp fragment of the rRNA gene of the Chlamydiaceae family. The PCR assay was evaluated using organs from 15 mice experimentally infected with the S26/3 reference strain of C. abortus. The results of the rRNA PCR were compared to the results from another PCR system (Omp2 PCR) that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Ovine; Caprine; Reproductive failures; Chlamydophila abortus; PCR.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700014

Vitrification of oocytes and in vitro produced bovine embryos exposed to cytochalasin B
Provedor de dados: 62
Autores: Mezzalira,Alceu; Viera,Arnaldo Diniz; Barbieri,Dilmar Paulo; Machado,Mariana Fernandes; Thaler Neto,André; Bernadi,Mari Lourdes; Silva,Carlos Antônio Mondino; Rubin,Mara Iolanda Batistella.
In this study, the influence of cytochalasin B on the survival and development after vitrification of oocytes and in vitro produced (IVP) bovine blastocysts was evaluated. In the Experiment I, 956 oocytes were matured for 22h and were immediately vitrified (Vitri treatment) or exposed for 15-20 minutes, to 7.5µg/ml (CB7.5Vitri treatment) or 45µg/ml (CB45Vitri treatment) cytochalasin B solutions, before vitrification. After 30 seconds of exposure to SV1 [400µl TCM-Hepes with 10% fetal serum (SF), 50µl ethylene glycol (EG) and 50µl DMSO], and 20 seconds to SV2 (300µl trehalose 1,0M + 20% SF, 100µl EG and 100µl DMSO) solutions, the oocytes were vitrified in Open Pulled Straws (OPS). The rewarming was performed at 37-38ºC in two steps of 5 minutes each, into...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Cytochalasin B; Embryos.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000500008

Effect of charcoal-treated bovine follicular fluid on the secretion of FSH in ovariectomized and intact prepubertal heifers
Provedor de dados: 62
Autores: ALVAREZ,Rafael Herrera; ARCARO,Juliana Rodrigues Pozzi; RIBELA,Maria Teresa Carvalho Pinto; PERONE,Cibele Nunes.
The aim of the experiment was to determine whether charcoal-treated bovine follicular fluid (bFF) removed from visible (&lt; 22 mm) follicles altered the secretion of follicle-stimulating hormone (FSH) in intact and ovariectomized prepubertal heifers. After a 10-ml injection of bFF given at three consecutive 8-h intervals, secretion of FSH was depressed in approximately 44% of the ovariectomized heifers but there was no effect in intact heifers. When the bFF treatment ceased, there were no rebound effects on FSH concentrations above that of controls pretreatment levels. These results suggest that proteins from bFF act at the pituitary level to inhibit FSH secretion and, differently of the intact, the ovariectomized heifer is an adequate model to put this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Follicular fluid; FSH; Bovine.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961998000500004

Detection of Leptospira spp. from pure cultures and from experimentally contaminated bovine semen by polymerase chain reaction
Provedor de dados: 62
Autores: HEINEMANN,Marcos Bryan; GARCIA,José Fernando; NUNES,Cáris Maroni; HIGA,Zenaide Maria Moraes; VASCONCELLOS,Silvio Arruda; Richtzenhain,Leonardo José.
Due to the high importance of the venereal transmission of bovine leptospirosis, this study aimed to test the ability of PCR to detect Leptospira interrogans serovar hardjo DNA in experimentally contaminated bovine semen. Employing primers directed to the 16S rRNA gene, 10 bacteria/ml of semen could be detected by PCR. Results achieved in this work show that PCR can have a great potential to detect Leptospira spp. in insemination centers.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leptospirosis; Leptospira; Semen; Polimerase Chain Reaction; Bovine.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961999000100002

Bovine carcass sexing by PCR method
Provedor de dados: 62
Autores: Curi,Rogério Abdallah; Mota,Lígia Souza Lima Silveira da; Amarante,Mônica Regina Vendrame; Lopes,Catalina Romeiro.
The objective of the present study was to develop a methodology that would permit sexing bovine meat ready for commercialization. A male-specific primer sequence was used, followed by analysis of the amplified product. The method proved to be efficient for sex verification and is of practical utility in the prevention of fraud in beef sale.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Carcass; Sexing; PCR.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000300007

Testosterone concentration in a bovine Bos indicus with bilateral varicocele: case report
Provedor de dados: 62
Autores: Koivisto,Marion Burkhardt; Luvizotto,Maria Cristina Rui; Nogueira,Guilherme Padua; Vicente,Wilter Ricardo Russiano; Costa,Marcelo Tadeu Alvarenga.
A bovine, Bos indicus, with bilateral varicocele diagnosticed by palpation and ultrasound observation was observed during 24 months measuring scrotal circumference, semen quality, testosterone concentrations comparing with seasonal variation and other animals of the same species. The abnormal morphology of major defects and minor defects didn't change between the bull and the other animals, however, the total defects were higher during the summer in the bull with varicocele (49,9%±6,9) when compared with the other bulls (27,9%±2,9). The animal showed higher percentage of major defects during the summer, comparing with the other seasons of the year. For the animal with varicocele testosterone levels were significantly higher during the different season's of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Varicocele; Bovine; Semen; Testosterone; Bos indicus.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000100005

The serological response of adult cattle after vaccination with Brucella abortus strain 19 and RB51
Provedor de dados: 62
Autores: POESTER,Fernando Padilla; RAMOS,Ernani Tadeu; GOMES,Marcos José Pereira; CHIMINAZZO,Cláudio; SCHURIG,Gerhardt.
Adult cattle vaccinated once or twice with 2x10(9) viable B. abortus strain RB51 bacteria did not seroconvert in the rose bengal, serum agglutination and mercaptoethanol tests. Animals vaccinated while pregnant did not abort and no B. abortus was isolated from their vaginal mucus and milk.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brucellosis; Antibody; Bovine.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000100010

Evaluation of nine microsatellite loci and misidentification paternity frequency in a population of Gyr breed bovines
Provedor de dados: 62
Autores: Curi,Rogério Abdallah; Lopes,Catalina Romero.
Paternity misidentification is harmful due to the reduction in annual genetic earnings of the population and because it endangers an efficient genetic improvement program. The objectives of the present study was to evaluate nine microsatellites in Paternity Testing and to investigate misidentification paternity frequency in families of Gyr breed bovines population. In the present experiment blood samples from forty Gir breed families ( bull / cow / calf ), registered pure breed in the Zebu Breeders Brazilian Association (ABCZ) were used. The most part of the microsatellites used in this work were recommended by the International Society of Animal Genetics (ISAG). The genomic DNA extraction was performed from whole blood samples. The microsatellites...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA; Microsatellites; Paternity; Bovine; Gyr.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000300004

Production of a cloned calf from a fetal fibroblast cell line
Provedor de dados: 56
Autores: Mello,M.R.B.; Caetano,H.V.A.; Marques,M.G.; Padilha,M.S.; Garcia,J.F.; Milazzotto,M.P.; Assumpção,M.E.O.A.; Lima,A.S.; Nicácio,A.C.; Mendes,C.M.; Oliveira,V.P.; Visintin,J.A.
The present study examined the in vitro and in vivo development of bovine nuclear-transferred embryos. A bovine fetal fibroblast culture was established and used as nucleus donor. Slaughterhouse oocytes were matured in vitro for 18 h before enucleation. Enucleated oocytes were fused with fetal fibroblasts with an electric stimulus and treated with cytochalasin D and cycloheximide for 1 h followed by cycloheximide alone for 4 h. Reconstructed embryos were cultured for 7-9 days and those which developed to blastocysts were transferred to recipient cows. Of 191 enucleated oocytes, 83 (43.5%) were successfully fused and 24 (28.9%) developed to blastocysts. Eighteen freshly cloned blastocysts were transferred to 14 recipients, 5 (27.8%) of which were pregnant...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cloning; Nuclear transfer; Bovine; Fetal fibroblasts; Embryo reconstruction.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001100006

Identification of Clostridium chauvoei in clinical samples cultures from blackleg cases by means of PCR
Provedor de dados: 58
Autores: Miyashiro,S.; Nassar,A.F.C.; Souza,M.C.A.M.; Carvalho,J.B.; Adegas,J.E.B.
C. chauvoei presence was detected by means of polymerase chain reaction (PCR) from supernatant of culture in cooked meat medium of liver, muscle and metatarsian bone marrow samples of seven calves with blackleg symptoms. The isolation under anaerobic conditions of one muscle sample revealed Clostridium perfringens in pure culture.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clostridium chauvoei; Blackleg; Bovine; PCR.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300020

Paratuberculosis: an update
Provedor de dados: 58
Autores: Lilenbaum,W.; Marassi,C.D.; Oelemann,W.M.R.
Paratuberculosis is a chronic enteritis that affects ruminants and is caused by Mycobacterium avium paratuberculosis (Map). The disease is worldwide spread and causes important economic losses. In Brazil, the bacillus was isolated in the south and northeast regions of the country and in Rio de Janeiro, but there are no enough epidemiological studies about its occurrence. Isolation of Map from tissues or fecal samples is 100% specific, but Map shows the most fastidious growth of all mycobacteria. Incubation lasts 8 -12 weeks, with a dependency on exogenous mycobactin J. Diagnostic tests based on specific DNA sequences allow fast and secure identification, and PCR has been used to confirm positive culture results and to identify Map in feces, milk and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paratuberculosis; Bovine; Mycobacterium; Cattle; Map.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000400001

Molecular typing of Mycobacterium bovis isolates: a review
Provedor de dados: 58
Autores: Ramos,Daniela Fernandes; Tavares,Lucas; Silva,Pedro Eduardo Almeida da; Dellagostin,Odir Antônio.
Mycobacterium bovis is the main causative agent of animal tuberculosis (TB) and it may cause TB in humans. Molecular typing of M. bovis isolates provides precise epidemiological data on issues of inter- or intra-herd transmission and wildlife reservoirs. Techniques used for typing M. bovis have evolved over the last 2 decades, and PCR-based methods such as spoligotyping and mycobacterial interspersed repetitive unit-variable number tandem repeat (MIRU-VNTR) have been extensively used. These techniques can provide epidemiological information about isolates of M. Bovis that may help control bovine TB by indicating possible links between diseased animals, detecting and sampling outbreaks, and even demonstrating cases of laboratory cross-contamination between...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tuberculosis; Bovine; Diagnosis; Genotyping; Mycobacterium bovis.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000200001

Isolates of Ureplasma diversum genotyped by single-enzyme amplified length polymorphism
Provedor de dados: 58
Autores: Buzinhani,Melissa; Mettifogo,Elena; Buim,Marcos R.; Moreno,Andréa M.; Paixão,Renata; Timenetsky,Jorge.
Isolates of Ureaplasma diversum recovered from bovines with reproductive disorders and healthy ones of four premises were compared by SE-AFLP. Twenty-eight SE-AFLP profiles without monomorphic fragments were obtained. The ureaplasma studied were divided in clusters A and B. Cluster A was divided in subclusters A1 and A2, while A1 was divided in subclusters A1a and A1b. Cluster B grouped only the reference strains. The clusters obtained were not associated with the reproductive disorders. The dendrogram obtained showed high heterogeneity among the studied ureaplasmas and indicated a low genomic stability as detected in other species of microorganisms of class Mollicutes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ureaplasma diversum; SE-AFLP; Bovine; Reproductive disorders.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000100007

Molecular identification and thermoresistance to boiling of Nocardia farcinica and Nocardia cyriacigeorgica from bovine bulk tank milk
Provedor de dados: 58
Autores: Condas,L.A.Z.; Ribeiro,M.G.; Gonoi,T.; Matsuzawa,T.; Yazawa,K.; Motta,R.G.; Franco,M.M.J.; Listoni,F.J.P.
Two strains of Nocardia spp. were isolated from bovine milk of two individual bulk tank. Molecular identification classified the strains as Nocardia farcinica and Nocardia cyriacigeorgica. The thermorresistance to boiling of the isolates was carried out and was observed bacterial growth after boiling. Our findings indicate the potential risk of pathogen transmission to humans through contaminated milk with Nocardia spp.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nocardia spp.; Bovine; Bulk tank milk; Thermoresistance; Boiling.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300029

Bovine response to lipoarabinomannan vaccination and challenge with Mycobacterium paratuberculosis
Provedor de dados: 58
Autores: Jolly,Ana; Morsella,Claudia; Bass,Laura; Fiorentino,María Andrea; Paolicchi,Fernando Alberto; Mundo,Silvia Leonor.
This study aimed to evaluate the immune response in bovines following immunization with a mycobaterial Lipoarabinomannan extract (LAMe) and the effect of Map challenge. LAMe vaccine induced specific antibody levels that diminished after the challenge and affected Map excretion at least for 100 days thereafter.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Paratuberculosis; Bovine; LAM; Humoral immune response; Experimental challenge.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200029

Potentially pathogenic mycoplasmas in the external ear canal of clinically normal cattle in Southeast Brazil: first report
Provedor de dados: 58
Autores: Santos,Sandra Batista dos; Nascimento,Elmiro Rosendo do; Faccini,João Luiz Horácio; Barreto,Maria Lúcia; Pereira,Virginia Léo de Almeida.
Mycoplasmas were searched in the ear canal flushing of 60 bovine in Brazil. The prevalence obtained was 80%. The percentages of typified species were 12.5%, for M. alkalenses; 2.1%, M. arginini; 8.35%, M. bovirhinis; 2.1%, M. bovis; 25.0%, M. conjunctivae; 14.6%, M. mycoides subsp. mycoides LC and 10.4% M. capricolum.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mollicutes; Bovine; External ear canal; Immunoperoxidase.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300006

Occurrence of Staphylococcus aureus in raw milk produced in dairy farms in São Paulo state, Brazil
Provedor de dados: 58
Autores: Fagundes,Helena; Barchesi,Luciana; Nader Filho,Antonio; Ferreira,Luciano Menezes; Oliveira,Carlos Augusto Fernandes.
The objective of the present study was to evaluate the occurrence of Staphylococcus aureus in milk produced in 37 farms located in the regions of Ribeirão Preto and São Carlos, state of São Paulo, Brazil. Two-hundred and eight samples of milk from individual cows showing subclinical mastitis, and 37 samples of bulk tank milk were analyzed. S. aureus strains were detected in 18 (7.3%) milk samples: 14 (6.7%) from samples of individual cows, and 4 (10.8%) from bulk tank milk. Two individual milk samples (14.3%) and two bulk milk samples contained enterotoxigenic S. aureus. PFGE analysis revealed the genetic heterogeneity of the strains isolated from raw milk, which presented to 13 S. aureus patterns. Results confirmed the potential transmission of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylococcus aureus; Raw milk; Bovine; Mastitis; Enterotoxin.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200018

Evaluation of DNA extraction protocols for Brucella abortus pcr detection in aborted fetuses or calves born from cows experimentally infected with strain 2308
Provedor de dados: 58
Autores: Matrone,M.; Keid,L.B.; Rocha,V.C.M.; Vejarano,M.P.; Ikuta,C.Y.; Rodriguez,C.A.R.; Ferreira,F.; Dias,R.A.; Ferreira Neto,J.S.
The objective of the present study was to improve the detection of B. abortus by PCR in organs of aborted fetuses from infected cows, an important mechanism to find infected herds on the eradication phase of the program. So, different DNA extraction protocols were compared, focusing the PCR detection of B. abortus in clinical samples collected from aborted fetuses or calves born from cows challenged with the 2308 B. abortus strain. Therefore, two gold standard groups were built based on classical bacteriology, formed from: 32 lungs (17 positives), 26 spleens (11 positives), 23 livers (8 positives) and 22 bronchial lymph nodes (7 positives). All samples were submitted to three DNA extraction protocols, followed by the same amplification process with the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Brucellosis; Abortion; PCR; DNA extraction.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300010

Characterization of mixed infections with different strains of bovine rotavirus in an outbreak of diarrhea in dairy herds in Goiás, Brazil
Provedor de dados: 58
Autores: Brito,Wilia Marta Elsner Diederichsen de; Munford,Veridiana; Villaça,André Martins; Caruzo,Thabata Alessandra Ramos; Rácz,Maria-Lucia.
Ten faecal samples of bovine rotavirus from calves less than 30 days old from an outbreak of diarrhea in Hidrolândia, Goiás, Brazil were submitted to serological and molecular characterization, using enzyme immunoassay for subgrouping and serotyping, PAGE for determination of electropherotypes and PCR for genome typing. Nine samples belonged to group A/subgroup I rotavirus and one sample was group A / subgroup non-I/non-II. Four samples were characterized as G10P[11] (B223-like), four samples showed a mixture of two rotavirus strains (G6G10 and P[5]P[11]), one sample was characterized as G6P[11] and one sample was characterized only by G serotyping/genotyping, and did not react with any P primer used. Two electropherotypes were detected and both were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rotavirus; Diarrhea; Bovine; Genotyping; Serotyping.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000200015

Prevalence of virulence genes in strains of Campylobacter jejuni isolated from human, bovine and broiler
Provedor de dados: 58
Autores: González-Hein,Gisela; Huaracán,Bernardo; García,Patricia; Figueroa,Guillermo.
Campylobacter jejuni isolates of different origins (bovine, broiler meat, human) were screened by polymerase chain reaction for the presence of 4 genes cdtB, cst-II, ggt, and virB11, previously linked to virulence such as adherence, invasion, colonization, molecular mimicry, and cytotoxin production. In addition, the isolates were screened for the presence of the global gene regulator csrA linked to oxidative stress responses, biofilms formation, and cell adhesion. All the C. jejuni isolates were positive for cdtB gene. The csrA gene was detected in 100% and 92% of C. jejuni isolates from human and animal origin and the virB11 gene was detected in 7.3% and 3.6% isolates from chicken and human respectively. All isolates from bovine were negative for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campylobacter jejuni; Virulence; Guillain Barré syndrome; Broiler; Bovine.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400028

PCR-based identification of Neospora caninum in the umbilical cord of a newborn calf in Brazil
Provedor de dados: 65
Autores: Azevedo da Cunha Filho,Nilton; Oliveira,Plínio Aguiar de; Oliveira,Fernando Caetano de; Pappen,Felipe Geraldo; Aguiar,Cintia Lidiane Guidotti; Santos Junior,Alceu Gonçalves dos; Costa-da-Silva,André Luis; Leite,Fabio Pereira Leivas; Farias,Nara Amélia da Rosa.
ABSTRACT: This study was conducted at a beef cattle breeding farm in the far southern region of Brazil. The birth of a calf with unilateral corneal opacity was immediately reported to the Laboratory of Parasitology, in the Universidade Federal de Pelotas, Rio Grande do Sul, Brazil; blood was collected from the cow and calf before colostrum intake. The umbilical cords from this calf and from six other healthy animals were collected. Serological examination, utilizing an indirect fluorescent antibody test, was done using a cut-off point of 1:100. Polymerase chain reaction (PCR) was also performed using the umbilical cord samples. Serological tests showed that the calf was positive for Neospora caninum at birth, with a titer of 1:1600; a titer of 1:3200 was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neospora caninum; Calves; Umbilical cord; Bovine.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700501

Heparin-binding proteins of seminal plasma in Nellore bulls
Provedor de dados: 65
Autores: Fernandes,Carlos Eurico; Souza,Fabiana Ferreira de; Souza-Neto,Jayme Augusto; Ribola,Paulo Eduardo Martins.
The aim of this study was to identify heparin-binding proteins (HBPs) in seminal plasma of Nellore (Bos taurus indicus) bulls. Bulls (n=4), 30-36 months old, 500-550kg with satisfactory seminal quality were selected. After the centrifugation, samples of the seminal plasma were pooled and the HBPs were isolated by heparin-affinity chromatography. The recovered HBPs fractions were pooled. One-dimensional sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDSPAGE) 12.5% was performed in vertical minigels. Eight bands with molecular weights ranging from 15 to 63kDa were observed. Two proteins were identified (22 and 25kDa), similar to those previously described in Bos taurus taurus bulls. Other bands identified in this study (39, 53, 58 and 63kDa)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Proteins; Seminal plasma; Bos taurus indicus.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000100048

Biometry of Trypanosoma vivax found in a calf in the state of Maranhão, Brazil
Provedor de dados: 65
Autores: Guerra,Rita de Maria Seabra Nogueira de Candanedo; Feitosa Júnior,Assuero Batista; Santos,Hamilton Pereira; Abreu-Silva,Ana Lúcia; Santos,Ana Clara Gomes dos.
Blood samples from cattle presenting signs of anemia, lethargy, weakness and general weight loss were collected. Trypanosoma vivax was detected in the blood smears of a calf. This paper reports the first recorded occurrence of T. vivax in the state of Maranhão, northeastern region of Brazil, and provides the biometrical data of the parasite.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trypanosoma vivax; Maranhão; Bovine; Biometry.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000300041

Outbreak of multidrug resistant Salmonella Typhimurium in calves at a veterinary hospital in Brazil
Provedor de dados: 65
Autores: Ramos,Carolina Pantuzza; Vespasiano,Letícia Camêlo; Melo,Isabela Oliveira; Xavier,Rafael Gariglio Clark; Leal,Carlos Augusto Gomes; Facury Filho,Elias Jorge; Carvalho,Antônio Ultimo de; Lobato,Francisco Carlos Faria; Silva,Rodrigo Otávio Silveira.
ABSTRACT: The present study aimed to describe and characterize a nosocomial outbreak caused by a multidrug resistant Salmonella Typhimurium in hospitalized calves at a veterinary medical teaching hospital from Brazil. Sixty-three (96.9%) calves showed lethargy, hyperthermia and profuse diarrhea and despite treatment, 26 (41.2%) animals died. Five animals were necropsied and stool samples of six calves were collected. The isolated strains were subjected to antimicrobial susceptibility test by disc-difusion method and were fingerprinted by ERIC-PCR. Macroscopic lesions suggestive of salmonellosis, such as fibrinonecrotic enteritis and hepatosplenomegaly were observed. Salmonellosis was confirmed by isolation of S. Typhimurium from stool samples and organs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonellosis; Bovine; Nosocomial; Zoonosis; Multiresistant.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000200452

Degenerative progressive hereditary mieloencefalopathy (Weaver Syndrome) in Gir calves
Provedor de dados: 65
Autores: Oliveira,Pedro Carlos Lucas de; Coelho,Humberto Eustáquio; Medeiros,Alessandra Aparecida de; Rieck,Susana Elisa; Souza,Juliana Meirelles de; Alvarenga,Rodrigo Rodrigues.
Degenerative progressive hereditary mieloencefalopathy is a disease described in young Brown Swiss cattle. In these animals the disease occurs in calves between six months and two years old showing mainly neurological signs. Two Zebu Gir calves were examined at the Veterinary Hospital of Uberaba, both with balance deficits. The neurological examination has shown that they were mentally alert, with appropriate conscience, head tremor, normal sensitive reflexes, normal sensitivity for superficial and deep pain, motor deficit of the pelvic limbs with severe ataxia. The calves were sacrificed. Based on the clinical case and necroscopic and histopathological findings, it could be suggested that the neuropathy, which affected both animals described above, is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mieloencefalopathy; Degenerative; Bovine; Gir.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000100026

Helminth fauna of bovines from the Central-Western region, Minas Gerais State, Brazil
Provedor de dados: 65
Autores: Santos,Thaís Rabelo dos; Lopes,Welber Daniel Zanetti; Buzulini,Carolina; Borges,Fernando de Almeida; Sakamoto,Cláudio Alessandro Massamitsu; Lima,Roberto Cesar de Araújo; Oliveira,Gilson Pereira de; Costa,Alvimar Jose da.
Seventy-six naturally infected bovines, males and females of mixed breed, aged 8 to 12 months-old, were necropsied. The results of necropsy revealed the presence of 9 helminth genera and 16 species, with the following prevalence and mean infection intensity: Haemonchus placei (100.0%; 3895.5); Haemonchus similis (29.0%; 159.6); Cooperia punctata (100.0%; 5595.0); Cooperia spatulata (32.9%; 137.8); Cooperia pectinata (34.2%; 1010.5); Trichostrongylus axei (69.7%; 239.2); Trichostrongylus colubriformis (10.5%; 10.8); Trichostrongylus longyspicularis (2.6%; 0.5); Ostertagia ostertagi (2.6%; 3.1); Ostertagia lyrata (2.6%; 1.5); Ostertagia trifurcata (1.3%; 0.3); Oesophagostomum radiatum (94.7%; 470.9); Trichuris discolor (47.4%; 32.5); Strongyloides papillosus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prevalence; Gastrointestinal nematodes; Bovine.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000400029

Segmental hypoplasia of the spinal cord and syringomyelia in a calf
Provedor de dados: 65
Autores: Souza,Luciana Aparecida de; Lopes,Samara de Paula; Daoualibi,Yasmin; Mósena,Ana Cristina Sbaraini; Gonçalo,Vinícius Vasconcellos da Cruz; Veiga,Cristiano Chaves Pessoa da; Spíndola,Bruno Ferreira; Silva,Wanessa Pereira da; Ubiali,Daniel Guimarães; Caldas,Saulo Andrade.
ABSTRACT: Congenital malformations are functional and structural changes in organ systems, tissues, or organs that may develop during the embryonic or fetal phase. Spinal cord malformations, such as segmental hypoplasia of the spinal cord (SHSC) and syringomyelia, are rare in bovines. A Girolando calf from Valença, Rio de Janeiro, was admitted to the Veterinary Hospital of Universidade Federal Rural do Rio de Janeiro because of motor incoordination. Clinical evaluation revealed a 5-cm depression area in the spine at the dorsal line of the thoracic region. Neurological examination revealed reduced proprioception, pelvic limb extension with increased nociceptive activity, and reduced anal reflex. In radiographic examination, the body of the T11 vertebra had...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Congenital malformations; Myelodysplasia; Segmental hypoplasia of the spinal cord; Histopathology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300551

Clinical and virological characteristics of calves experimentally infected with a Brazilian isolate of bovine viral diarrhea virus type 1a
Provedor de dados: 65
Autores: Quadros,Luana Marchi; Jardim,José Conrado dos Santos; Merchioratto,Ingryd; Brum,Mário Celso Sperotto.
ABSTRACT: To study the pathogenicity of the Brazilian bovine viral diarrhea virus (BVDV) type 1a 241.10 isolate, four calves were intranasally inoculated with a viral suspension containing 107.2 TCID50 mL-1. One calf was left uninoculated and kept in contact with the other calves to investigate viral transmissibility. After inoculation, the animals were monitored daily for clinical signs of infection. The presence of the virus in the blood and nasal secretions was confirmed by virus isolation in cell culture. White blood cells were quantified prior to and every 3 days after infection, and the presence of antibodies was checked every 7 days, starting at day 0 until day 42 post-inoculation (pi). After infection, nasal and ocular serous secretions were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calf; Experimental infection; Pestivirus; Bovine; BVDV.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001101986

Control of bovine gastrointestinal nematode parasites using pellets of the nematode-trapping fungus Monacrosporium thaumasium
Provedor de dados: 65
Autores: Araújo,Jackson Victor de; Guimarães,Marcos Pezzi; Campos,Artur Kanadani; Sá,Nilo Chaves de; Sarti,Priscilla; Assis,Rafaela Carolina Lopes.
The viability of a formulation of the fungus Monacrosporium thaumasium associated with ivermectin was evaluated for the biological control of bovine gastrointestinal nematode parasites. Four groups of five calves each were placed in pastures with a stocking rate of 1.6 animal/hectare. In group 1 (control), the calves did not receive any treatment. In group 2, each animal received 20g of pellets of M. thaumasium orally twice a week during a six-month period that began with the onset of the rainy season (October 23, 2000). In group 3, each animal received 20g of pellets of M. thaumasium orally twice a week during the same period as 2, as well as two strategic treatments with ivermectin (200 mcg/kg) on May 10, 2001 and July 5, 2001. In group 4, the animals...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Monacrosporium thaumasium; Nematodes; Nematophagous fungi; Pellets; Bovine.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000200019

Vacuum-cooled liquid nitrogen increases the developmental ability of vitrified-warmed bovine oocytes
Provedor de dados: 65
Autores: Santos,Rodrigo Marques dos; Barreta,Marcos Henrique; Frajblat,Marcel; Cucco,Diego Córdova; Mezzalira,Joana Claudia; Bunn,Silvério; Cruz,Fabiano Buss; Vieira,Arnaldo Diniz; Mezzalira,Alceu.
The objective of this study was to determine the effects of vacuum-cooled liquid nitrogen on the development of vitrified immature (germinal vesicle stage; GV) and mature (metaphase II; MII) bovine oocytes after re-warming. Liquid nitrogen was exposed to either atmospheric pressure or to a vacuum (300mm Hg for 45sec); the latter decreased the temperature of the liquid nitrogen to -200°C. Partially denuded oocytes were vitrified either just after selection (GV) or after 22 hours of in vitro maturation (MII) in TCM 199 medium + 10% of estrous mare serum. For vitrification, oocytes were firstly exposed to an intermediate solution (10% EG + 10% DMSO) for 30sec, followed by the vitrification solution (20% EG + 20% DMSO + 0.5M sucrose) for 20sec. Groups of three...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitrification; Cryopreservation; Oocytes; Bovine; Vacuum.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782006000500024

Comparison between three techniques for videosinuscopy in cattle
Provedor de dados: 65
Autores: Basso,Fernando Zanlorenzi; Busato,Eduarda Maciel; Silva,Jéssica Rodrigues da; Guedes,Rogério Luizari; Barros Filho,Ivan Roque de; Dornbusch,Peterson Triches.
ABSTRACT: Cattle have extensive paranasal sinuses that are susceptible to disease, most commonly sinusitis. The sinuscopy can be used to evaluate these structures, although there are no descriptions of this region for endoscopic anatomy, especially regarding the trocar position and the most appropriate type of endoscope. This study aimed to standardize the surgical approaches to sinuscopy in cattle by comparing the use of three endoscopes. Four accesses by trephination (one hole for each of the maxillary and frontal sinuses) were made in eight heads of slaughtered cattle. Each hole was inspected with three endoscopes: a 10mm flexible colonoscope with up to 180º of angulation, a 10mm 0° laparoscope and a 4mm 30º arthroscope. It was observed that all regions...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endoscopy; Videosurgery; Nasal sinus; Sinusitis; Bovine.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701262

Deforming mandibular osteomyelitis in a cow caused by Trueperella pyogenes
Provedor de dados: 65
Autores: Caffaro,Karen Antas; Hussni,Carlos Alberto; Risseti,Rafaela Mastrangelo; França,Daniel Queiroz; Franco,Marília Masello Junqueira; Machado,Vânia Maria de Vasconcelos; Belotta,Alexandra Frey; Paes,Antonio Carlos; Lara,Gustavo Henrique Batista; Morais,Amanda Bonalume Cordeiro de; Listoni,Fernando José Paganini; Ribeiro,Marcio Garcia.
This study reports an unusual case of deforming mandibular osteomyelitis in a cow caused by Trueperella (Arcanobacterium) pyogenes, on the face of the ventrolateral caudal portion of the right branch of the mandible. Fragment aspired of lesion by fine needle allowed cytological characterization, isolation and identification of T. pyogenes. Radiographic examination showed marked periosteal reaction in the right mandible, numerous lytic areas and cortical bone destruction. Despite of treatment based on in vitro antimicrobial sensitivity test, it was recommended the euthanasia due to progressive worsening of the cow's condition. Multiple abscesses were observed in the mandibular region at necropsy. Pyogranuloma was characterized in histological exam. Sampled...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Trueperella pyogenes Arcanobacterium pyogenes osteomyelitis jaw.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014001102035

Absorption and metabolism of volatile fatty acids by rumen and omasum
Provedor de dados: 64
Autores: Daniel,João Luiz Pratti; Resende Júnior,João Chrysostomo de.
Volatile fatty acids (VFA) absorption and metabolic capacity of rumen and omasum were compared, in vitro. Fragments of rumen wall and omasum laminae were taken from eight adult crossbred bovines. An isolated fragment of the mucosa was fitted in a tissue diffusion chamber. Valeric acid and CrEDTA were added to ruminal fluid and placed on the mucosal side and buffer solution was placed on the serosal side. Fractional absorption rates were measured by exponential VFA:Cr ratio decay over time. Metabolism rate was determined as the difference between VFA absorbed and VFA which appeared on the serosal side over time. Mitotic index was higher in omasum (0.52%) than in rumen epithelium (0.28%). VFA fractional absorption rate was higher in omasum (4.6%/h.cm²) than...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphology; Physiology; Bovine; Ussing chamber; Forestomach.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000100012

FACTORS AFFECTING PREGNANCY RATES AFTER OVUM PICK UP-DERIVED EMBRYO TRANSFER IN LACTATING HOLSTEIN RECIPIENTS UNDER TROPICAL CONDITIONS
Provedor de dados: 64
Autores: Pinto,Tássia Louregiani Carvalho; Nogueira,Marina Bottrel Reis; Sales,José Nélio de Sousa; Carvalho,Rafaela Rodrigues de; Cushman,Robert Andrew; Souza,José Camisão de.
ABSTRACTHigh milk production, heat, physiological status and management impair reproduction in Holstein cows. The use of in vivo-produced embryos has been reported as an alternative to enhance pregnancy outcome in the tropics; however there are several limitations for its production, especially from variations in superovulatory responses. The in vitro production of embryos would avoid such variations, but few studies have been reported. This study aims to verify the effects of variables related to recipients under a program of routine in vitro embryo transfer on a commercial dairy farm in southeastern Brazil. It was hypothesized that pregnancy rates after transfer of ovum pick up or OPUderived embryos (ET) to lactating Holstein recipients may be influenced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; GnRH agonists; Progesterone.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000500498