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| Registros recuperados: 190 | |
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| 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 |
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| 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... |
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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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Registros recuperados: 190 | |
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