- Author:
K. Singh, P. Kinjavdekar, T. Singh, Amarpal , H.P. Aithal, G.R. Singh, A.M. Pawde, K. Pratap
Indian Veterinary Research Institute, Izatnagar-243 122.
Veterinary College, G.B. Pant University of Agriculture and Technology, Pantnagar (Uttaranchal).
