The diploma courses in animal husbandry have been introduced in almost all agriculture and veterinary universities of India including Indian Council of Agriculture Research (ICAR) institutions. This course is necessary to obtained skilled persons in the area of veterinary science and animal husbandry in order to help veterinary doctors and other technical professionals for quality services. In the area of animal husbandry and veterinary science there is lot of text for graduation but test books for diploma courses are few in number. This book will also be helpful to the progressive farmers who want to know more about this science and want to become entrepreneurs. Even different agro Industries can use this book to train their workers with help of professional. There are 11 contributors in this book. All contributors are competent and specialists in their respective fields. Most of them are students of the editor.

Dr. Om Prakash Mishra born on 3rd January 1961. He did his B.V.Sc. & AH from Ranchi Veterinary College in 1984. He did M.V.Sc. and Ph.D. in veterinary physiology and fellow of National Academy of Veterinary Science. He visited University of Wisconsin, Madison, U.S.A. for advance training. He guided so many research projects of ICAR as PI and COPI as well as post-graduate students. He published more than 100 research papers in national and international journals and symposia. He started his carrier as an Assistant Professor in 1988 from Indira Gandhi Agriculture University, Raipur and become professor in 2003 at age of 42 years. He was nodal officer of veterinary polytechnic in Chhattisgarh Kamdhenu Viswavidylaya where he developed diploma course and veterinary polytechnic. He is external examiner of almost all agriculture and veterinary universities and a member of selection committee in several universities. Dr. Mishra is former Joint Secretary and life member of the Society of Animal Physiologist of India (SAPI). Similarly, former Joint Secretary and life member of Indian Society for Study of Animal Reproduction (ISSAR) and Executive Committee member of Indian Association of Animal Production (IAAP). Presently he is Professor & Head, Veterinary Physiology and Biochemistry, College of Veterinary Science & AH, Chhattisgarh Kamdhenu Viswavidylaya, Durg. He organized several conferences in India.