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OJVRTM

Online Journal of Veterinary Research©

(Including Medical and Laboratory Research)

Established 1994

ISSN 1328-925X

Volume 28 (11): 808-811, 2024.

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Prevalence of bovine viral diarrhea virus antibodies in industrial dairy cattle.

Khalil Badiei DVM PhD, Mohsen Ghane DVM, Khodadad Mostaghni DVM PhD.

School of Veterinary Medicine, Shiraz University, Shiraz, Iran

ABSTRACT

Badiei K, Ghane M, Mostaghni K., Prevalence of bovine viral diarrhea virus antibodies in industrial dairy cattle, Onl J Vet Res., 28 (11): 808-811, 2024. We report prevalence of bovine viral diarrhea (BVD) by ELISA in 952 unvaccinated industrial dairy cattle. We found 573 or ~69% of 952 samples were positive. However after correction for OD >0.20 only 379 (39.8%) were positive but true prevalence for virus was ~60%. All herds had antibody with prevalence of 37 to 86%. Sero-positivity increased with age and parity with 1 parity and <2 years lower than others (P < 0.05) but not between others. We found no effect of herd size or milk yield. We find that high prevalence in our study was likely due persistent infection by bovine viral diarrhea virus.

Key words: BVDV, Prevalence, Industrial dairy cattle, ELISA, Shiraz, Iran.