1. Reproductive Physiology Laboratory, Physiology and Climatology Division, Indian Veterinary Research Institute, Izatnagar 243122, India.
2. Department of Animal Science, Mahatma Jyotiba Phule Rohilkhand University, Bareilly 243006, India.
3. Physiology and Reproduction Division, Central Avian Research Institute, Izatnagar 243122, India.