Biosecurity practices associated with bovine viral diarrhea virus infection in dairy herds in Brazil
Janaína Santos Ferreira,
Camila Costa Baccili,
Beatriz Santos Nemoto
et al.
Abstract:This study determined the association between biosecurity practices and the status of bovine viral diarrhea virus (BVDV) in dairy production systems. Approximately 280 herds were screened for BVDV virus detection. Following the screening, 68 herds were selected to identify individual BVDV PI animals using an ear notch biopsy and ELISA-antigen. All offspring of the last generation were tested, and the maternal lineage of positive cases was examined. A questionnaire on BVDV biological risk assessment was complet… Show more
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