Serological study of bovine viral respiratory diseases in dairy herds in Kerman province, Iran

Document Type: Full paper (Original article)

Authors

1 Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran

2 Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran

3 Veterinary Organization of Kerman province, Kerman, Iran

Abstract

Respiratory disorders are major concern for dairy cattle industry. Viruses and bacteria in combination
with stress play a key role in triggering acute respiratory infections. The most important viral agents are
bovine viral diarrhoea virus (BVDV), bovine herpes virus type 1 (BHV-1), bovine respiratory syncytial virus
(BRSV), parainfluenza virus type 3 (PIV-3) and bovine adenovirus (BAV). This cross-sectional study was
conducted to evaluate the serological status of BVDV, BHV-1, BRSV, PIV-3 and BAV in dairy herds in
Kerman province, Iran. From June to November 2007, 181 serum samples were collected from 1–3-year-old
cattle from 15 industrial dairy farms in Kerman province using cluster sampling. The samples were tested by
commercial indirect ELISA kits. Antibodies were detected against BVDV, BHV-1, BRSV, PIV-3 and BAV
in 77.90, 30.39, 100, 100 and 100% of serum samples, respectively. All farms were positive at least for one
of these viruses and antibodies against all the 5 viruses were detected in 4 (26.66%) herds among 15 dairy
farms. According to the present study, BVDV, BRSV, PIV-3 and BAV are common viruses in dairy herds in
Kerman province.

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