Yadav, R. K. S., Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, U. P. Pt. Deen Dayal Upadhyay Pashu Chikitsa Vigyan Vishwavidyalaya, Evam Go Anusandhan Sansthan (DUVASU), Mathura – 281001, Uttar Pradesh, India