The Thai Journal of Veterinary Medicine


Bulk tank milk (BTM) samples from 160 dairy herds located in Muaglek area were tested for antibodies to Bovine Virus Diarrhoea Virus (BVDV). Of these 160 samples, 153 (95.6%) were negative for antibodies to BVDV. Seven samples (4.4%) had low levels of BVDV antibodies. Therefore, the prevalence of BVDV among the dairy cattle in this area of Thailand can be regarded as low. Forty samples were randomly selected to test for antibodies to Infectious Bovine Rhinotracheitis Virus (IBRV), Bovine Leukemia Virus (BLV), Bovine Coronavirus (BCV) and Bovine Respiratory Syncytial Virus (BRSV) and 26 (65%), 39 (98%), 37 (93%) and 25 (63%) samples were antibody positive, respectively. Because the prevalence of antibodies to IBRV and BLV in the BTM samples was high, further consideration should be given to investigating and intiating control programmes for dairy herds in the Muaglek area.

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