Contents: 1. Veterinary Biochemistry and Biotechnology (Part-I). 2. Veterinary Biochemistry and Biotechnology (Part-II). 3. Veterinary Extension Education (Part-I) (Sociology, Principles of Animal Husbandry Extension, Livestock Economics, Marketing and Business Management). 4. Veterinary Extension Education (Part–II) (Extension Techniques in Veterinary Practice Education and Animal Production. This book is written for students who are taking their first and perhaps their only course in biochemistry, whether as undergraduates or as graduate students. The book is simple in language and approach but yet presents a powerful way of analyzing many important problems in biology and extension.