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Bovine viral diarrhea virus infection in a dairy herd with high prevalence of persistently infected calves

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Please use this identifier to cite or link to this item:http://doi.org/10.14943/jjvr.60.2-3.111

Title: Bovine viral diarrhea virus infection in a dairy herd with high prevalence of persistently infected calves
Authors: Helal, Mahmoud Atef Youssef Browse this author
Okamatsu, Hiroyuki Browse this author
Tajima, Motoshi Browse this author
Keywords: bovine viral diarrhea virus
BVDV control
persistently infected animals
Issue Date: Aug-2012
Publisher: Graduate School of Veterinary Medicine, Hokkaido University
Journal Title: Japanese Journal of Veterinary Research
Volume: 60
Issue: 2&3
Start Page: 111
End Page: 117
Abstract: A dairy herd including approximately 50 milking cows and 40 heifers and calves was investigated. This herd was detected with high prevalence of calves persistently infected (PI) with bovine viral diarrhea virus (BVDV). Nine PI animals including a milking cow and 8 newborn calves were detected in the herd within 4 months. Prevalence of PI animals in this herd was estimated 7.0% which was very high compared to that estimated in previous reports. All newborn PI calves were strongly suspected to have a single origin of infection as estimated from the homology of the virus genes. The cause of high prevalence could not be clarified. Removal of PI animals and continuous examination of newborn calves were important for the elimination of BVDV from the herd.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/50100
Appears in Collections:Volume 60, Number 2&3

 

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