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| Registros recuperados: 31 | |
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| ANDREOTTI, R.; GOMES, A.; PIRES, P. P.; RIVERA, F. E. B.. |
| O sistema de produção de gado de corte, desde a preparação para a estação de monta ate a terminação dos animais, necessita de um planejamento sanitário. Esse controle, em uma primeira analise, visa a dar maior segurança econômica ao produtor, pela diminuição dos riscos de perdas na produtividade do sistema. Ao mesmo tempo, o sistema vai oferecer um produto mais seguro, do ponto de vista sanitário, para o consumidor. Portanto, a viabilidade da resposta dos investimentos no sistema de produção, com relação ao melhoramento genético e nutrição animal, vai depender da eficácia da prevenção de doenças no sistema. Este trabalho tem o objetivo de discutir a importância do planejamento sanitário nas doenças consideradas importantes, sem a pretensão de esgotar o... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Bovino de corte; Controle; Estação de monta; Suplementação; Diseases; Control; Reprotuction; Breeding seasons; Pregnacy; Supplements.; Bezerro; Doença; Parasito; Prenhez; Reprodução; Sanidade Animal; Touro; Vaca.; Animal health; Cows; Beef cattle; Bulls; Calves; Parasites.. |
| Ano: 1998 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/316566 |
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| Arzate-Vázquez,Gerardo L; Castrejón-Pineda,Francisco A; Rosiles-Martínez,René; Carrillo-Pita,Silvino; Angeles-Campos,Sergio; Vargas-Bello-Pérez,Einar. |
| G.L. Arzate-Vázquez, F.A. Castrejón-Pineda, R. Rosiles-Martínez, S. Carrillo-Pita, S. Angeles-Campos, and E. Vargas-Bello-Pérez. 2016. Effect of genus and growth stage on the chemical and mineral composition of tropical grasses used to feed dairy cows. Cien. Inv. Agr. 43(3): 476-485. In tropical production systems, dairy cows are rarely supplemented with minerals, which often lead to mineral imbalances. Grasses grown together in the same soil type and sampled at the same growth stage can vary widely in chemical and mineral composition; therefore, the objective of this study was to characterize the chemical and mineral composition of Urochloa spp., Megathyrsus spp., and Andropogon spp. at three different stages of growth in the same soil type. The content... |
| Tipo: Journal article |
Palavras-chave: Cows; Forage; Nutritive value; Ruminants; Trace minerals. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000300013 |
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| Farray González,Jesús Francisco; Rubio García,Juan Luís; Fabré Rodríguez,Yolexis; Alonso Rodríguez,Julio César; Suárez Fernández,Yolanda E.. |
| Se realizó un estudio observacional de diseño transversal en la población bovina del Rancho Lupita, Aguascalientes, México, en el periodo junio-julio de 2013, con el propósito de reducir la prevalencia de mastitis e incrementar la recuperación de cuartos y animales, a través del empleo de acciones y procedimientos de prevención y control. Para determinar la prevalencia, se diagnosticó la mastitis por examen físico individual, mediante la prueba de California, por el conteo de células somáticas y por aislamiento bacteriológico. Para la reducción de la mastitis se instauraron medidas preventivas y de control de la enfermedad y se evaluó la recuperación de los cuartos y animales afectados por medio del implante de catgut en el punto acupuntural E-29. Se logró... |
| Tipo: Journal article |
Palavras-chave: Mastitis; Implante; Vacas; Estómago 29; Mastitis; Implant; Cows; Stomach 29. |
| Ano: 2015 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2015000200003 |
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| Gil,S.; Hevia,S.; Dallorso,M.; Resnizky,S.. |
| A deficiência de selênio já foi identificada pela medição da atividade da enzima glutationa de peroxidase no sangue de animais (vacas) criados em certas regiões do Pampa Úmido, mais especificamente na cidade de Nueve de Julio (Buenos Aires - Argentina). Em trabalho anterior, a análise de ativação neutrônica confirmou esses baixos níveis de selênio em uma determinada fazenda de cria para gado de corte. Neste trabalho, foram analisados os níveis de selênio no solo, na forragem e no plasma dos animais do mesmo estabelecimento. A população analisada (n=60) apresentou níveis de selênio abaixo do normal (30,1 ± 4,6µg/ml). De maneira semelhante, a concentração de selênio da forragem consumida - matéria seca igual a 30% - proveniente de uma área de baixada do... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Selenium; Deficiency; Cows; Neutron activation analysis. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000200018 |
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| KAWATA, Yukichika; 河田, 幸視. |
| This paper reviewed existing lactation models which are mainly applied to dairy cows. There are many related papers; in 50 papers, 90 lactation curves are presented. The most frequently used model is Wood’s (1967), which was quoted in 75 papers. In general, the earlier the year of the model presented in the paper, the higher its frequency of quotation. Wood’s (1967) model was followed by other models from Brody et al. (1923), Sikka (1950), Nelder (1966), Dave (1971), Cobby et al. (1978), Ali et al. (1987), Wilmink (1987), and Grossman et al. (1988); these models were quoted 9, 8, 17, 11, 9, 12, 18, and 11 times, respectively. The classic models, which have been mainly described as the function of time, have less room for improvement and have become... |
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Palavras-chave: Lactation curve; Classic model; Test day model; Review; Cows; 泌乳曲線; Test day model; レビュー; 乳牛. |
| Ano: 2011 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3113 |
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| Kic, Pavel. |
| Milking is a key operation on dairy farms. The capacity and function of milking parlor influences production conditions (time of operations, needs of labor, total costs), so actually it affects the efficiency of the whole dairy farm. This paper presents a structure and principal parts of mathematical model which was created with the aim to enable to farmers and designers to choose suitable type of milking parlor for specific farm conditions. Three principal questions important for optimization of milking parlor are: technical parameters, indicators of labor productivity and economic criteria. The model structure was created with the aim to find the answer to all of them. The model includes in calculation main parameters of typical arrangements of milking... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Farm; Cows; Equipment; Labor productivity; Specific costs; Czech Republic. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3138 |
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| Kowalski,Ananda Paula; Maboni,Grazieli; Espindola,Julia Pires; Foletto,Ariane; Bandeira Junior,Guerino; Pötter,Luciana; Botton,Sônia de Avila; Vargas,Agueda Castagna de. |
| Records of in vitro susceptibility tests performed between 1992 and 2011 were retrospectively reviewed in order to evaluate the dynamic profiles of possible changes in antimicrobial resistance of Staphylococcus spp. isolated from milk samples of cows with mastitis during two decades. The results of 2,430 isolates tested by disk diffusion technique for susceptibility to oxacillin, penicillin, ampicillin, cephalexin, norfloxacin, tetracycline, sulfazotrim, gentamicin, and neomycin were analysed. Comparisons were performed between the percentages of resistance to antimicrobials and their classes and also between the decades studied. Additionally, the possible tendency or changes in the behaviour of these pathogens against the major drugs used in the last two... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cows; Milk; Staphylococcus spp.; Susceptibility; Surveillance. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000601035 |
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| LANGONI,Helio; ICHIHARA,Sílvio Massaru; SILVA,Aristeu Vieira da; PARDO,Renata Bonini; TONIN,Flávia Bechelli; MENDONÇA,Lia Jeanne Pereira; MACHADO,José Aparecido Dorta. |
| Brucellosis is a chronic zoonosis that plays an important role in Public Health. Considering the lack of data in Brazil regarding its presence in raw milk and non-pasteurized dairy products, we determined the presence of brucellae in milk from brucellosis positive animals. The slide agglutination test (SAT), tube agglutination test (TAT) and TAT treated with 2-mercaptoethanol were used to identify positive animals in studied herds. For 3 days, 300 ml milk samples/cow (75 ml/teat) were collected from all productive quarters of the positive animals. These were mixed and centrifuged. Part of the pellet and of the supernatant were inoculated in Farrel and Brodie-Sinton (BS) media supplemented with antimicrobial agents. The inoculated plates and tubes were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Milk; Brucella abortus; Cows; Brucellosis. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000600004 |
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| Macêdo,A.A.M.; Oliveira,J.M.B.; Silva,B.P.; Borges,J.M.; Soares,L.B.F.; Silva,G.M.; Santos,S.B.; Mota,R.A.; Pinheiro-Júnior,J.W.. |
| ABSTRACT The objective of this study was to conduct an investigation of Mycoplasma bovigenitalium and Ureaplasma diversum infections in cattle in the microregion of the Ipanema Valley, state of Pernambuco, Brazil. Vaginal swabs were collected from 355 breeding cows in reproductive age and were analyzed by multiplex PCR (mPCR) and culture. An epidemiological investigation of risk factors was performed for Mollicutes. mPCR analysis showed that, 9.29% (33/355) of the cows were positive for M. bovigenitalium and 21.69% (77/355) for U. diversum; coinfection was observed in 2.81% (10/355) of the cows. The microbiological isolation showed, 81.81% (27/33) of Mycoplasma spp. and 24.67% (19/77) of Ureaplasma spp.. The risk factors related to Mollicutes infection... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: MPCR; Mollicutes; Cows; Risk factors; Ipanema valley. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000601798 |
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| MORAES, S da S.; NICODEMO, M. L. F.; VAZ, E. C.; PIRES, P. P.; CATANANTE, M. C.; THIAGO, L. R. L. de S.; VIEIRA, J. M.; FONSECA, E. M.. |
| De um modo geral, as concentracoes de zinco nas braquiarias sao bastante baixas, nao atendendo as necessidades de bovinos em pastejo na maioria das categorias. As vacas de cria formam a categoria do rebanho mais predisposta a esse tipo de deficiencia, por seus elevados requisitos nutricionais, ao tempo que permanecem no rebanho, e por serem destinadas a elas geralmente as piores areas de pastagens. Resultados de analises de forrageiras nativas e cultivadas das areas de cerrado, realizadas no laboratorio da Embrapa Gado de Corte, demonstraram que 90% das amostras apresentaram teores de Zn abaixo do nível considerado minimo (20 ppm) para um bom desempenho animal. O principal objetivo e evidenciar a relacao entre a suplementacao de zinco das vacas e a... |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Bovino de corte; Mineral deficiencies.; Bezerro; Deficiência Mineral; Sanidade Animal; Vaca; Zinco.; Animal health; Beef cattle; Cows; Calves; Zinc.. |
| Ano: 2001 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325280 |
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| OHTANI, Masayuki; OKI, Naoko; TANIMURA, Miyune; KOBAYASHI, Shu-ichi; ACOSTA, Tomas J.; HAYASHI, Kanako; MIYAMOTO, Akio; 宮本, 明夫. |
| It is well known that an injection of prostaglandin F2α (PGF2α) or its analogue during the mid luteal phase of the estrous cycle induces a rapid decrease in plasma progesterone (P4) concentration, followed by luteolysis in the cow. There is evidence that a potent vasoactive peptide, endothelin-1 (ET-1), is produced in the bovine corpus luteum (CL), and that it is directly involved in luteolysis. We previously found that ET-1 concentrations in the peripheral plasma increase during the period of luteolysis and ovulation in cows. However, it is not clear whether the elevation of peripheral plasma ET-1 concentration observed during luteolysis and ovulation originates exclusively from the ovary and/or CL. Such a profile of plasma ET-1 concentration may be... |
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Palavras-chave: Endothelin; Progesterone; Plasma; Calves; Cows. |
| Ano: 2001 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2973 |
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| Pavel Kic. |
| Milking is a key operation on dairy farms. The capacity and function of milking parlor influences production conditions (time of operations, needs of labor, total costs), so actually it affects the efficiency of the whole dairy farm. This paper presents a structure and principal parts of mathematical model which was created with the aim to enable to farmers and designers to choose suitable type of milking parlor for specific farm conditions. Three principal questions important for optimization of milking parlor are: technical parameters, indicators of labor productivity and economic criteria. The model structure was created with the aim to find the answer to all of them. The model includes in calculation main parameters of typical arrangements of milking... |
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Palavras-chave: Farm; Cows; Equipment; Labor productivity; Specific costs; Czech Republic. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3138 |
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| Registros recuperados: 31 | |
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