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Takiuchi,Elisabete; Barry,Aline Fernandes; Alfieri,Alice Fernandes; Filippsen,Patrícia; Alfieri,Amauri Alcindo. |
Bovine coronavirus (BCoV) is a known cause of winter dysentery (WD) in adult cattle. The morbidity of the disease is high, that results in a significant decrease in milk production and consequently, economic losses. In the present study, we report on a classical outbreak of WD that affected a high-production Holstein dairy herd raised in a tropical country. The lactating batch included 154 cows, and 138 (90%) presented diarrhea in a short (nine days) period of time. Three (2%) cows died. The other batches of animals did not become ill. The evolution of the disease in the herd, including the clinical signs and epidemiological features, strongly suggested a WD case. Semi-nested PCR and RFLP confirmed that BCoV was the cause of the infection. Samples tested... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cattle; Dairy herd; Winter dysentery; Diarrhea; Bovine coronavirus. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700008 |
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Linares,Rita de Cássia; Barry,Aline Fernandes; Alfieri,Alice Fernandes; Médici,Kerlei Cristina; Feronato,César; Grieder,Wladimir; Alfieri,Amauri Alcindo. |
Neonatal diarrhea is one of the main causes of morbidity and mortality in piglets, and it leads to significant economic losses for pig farmers worldwide. The aim of this study was to determine the frequency of diagnosis, age group, and association of group A rotavirus (GARV) infection with diarrhea in piglets from pig herds in two (south and center-west)Brazilian geographical regions. The frequency of GARV diagnosis was evaluated between 2004 and 2007, using SS-PAGE on 681 fecal samples (428 diarrheic and 253 with normal consistency) from 1-4 week-old piglets. The animals were selected from 130 pig herds and 80 counties in the states of Rio Grande do Sul, Santa Catarina, Paraná, Mato Grosso do Sul, and Mato Grosso, Brazil. None of the herds were vaccinated... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piglet; Neonatal diarrhea; Group A rotavirus; SS-PAGE. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700009 |
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