[Objective] To understand the prevalence of Bovine viral diarrhea virus（BVDV）infection at Yulin dairy farms in Shaanxi Province.[Method] 156 serum samples were collected from 5 dairy farms and BVDV antigen was detected by double antibody sandwich ELISA.[Result] BVDV infection was found in the four families.The positive rates of BVDV antigen ranged from 0 to 6.38%,with an average of 4.49%（7/156）.The positive rates of BVDV antigen in adult cows,calves and raise cows were 5.66%,4.44% and 3.45% respectively.[Conclusion] BVDV was prevalent and persistently infected in cattle from 5 dairy farms in Yulin,Shaanxi Province. The infection rate of BVDV was high.Therefore,effective purification measures of BVDV such as periodic detection,introduction and quarantine,immunization were put forward.
ZHANG Hongmei, YUAN Rongying, WANG Feng, XUE Hailong, JI Yang
. Epidemiological Investigation and Control of Bovine Viral Diarrhea in Dairy Farm[J]. China Dairy, 2023
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: 14
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DOI: 10.12377/1671-4393.23.07.04
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