Department of Veterinary Epidemiology and Preventive Medicine, Veterinary College and Research Institute, Namakkal- 637 002, Tamil Nadu
*E-mail address: g.selvaraju@tanuvas.org.in
Online published on 11 September, 2013.
The present study investigated the seroprevalence of bluetongue in sheep of North-west agro-c1imatic zone of Tamil Nadu. Out of 600 sera samples, 154 (25.66%) were found to be positive for BTV antibodies. District-wise seroprevalence was 24.00,34.50 and 18.50% in Namakkal, Salem and Dharmapuri district, respectively. Seroprevalence in nomadic pastoral system and animal maintained without nomadism was 28.29 and 20.00%, respectively. Breed-wise seroprevalence was 29.01 and 11.40% in Mecheri breed and Tiruchy Black breeds, respectively. The age-wise seroprevalence was 13.25, 30.48 and 26.46% in the group of less than six months, six months to one year and above one year, respectively. Seroprevalence was significantly higher in females (28.21 %) than in males (11.83%).
Bluetongue, Seroprevalence, Sheep
