The book "A Concept on Animal Breeding" offers a comprehensive introduction to the fundamentals of animal breeding and its significance for genetic improvement. Given the advancements in science and the associated development of new breeding techniques, it is crucial that students, especially in developing countries like Nepal, have access to concise and understandable educational materials. This textbook has been specifically designed to convey the essential concepts of animal breeding and to serve as a valuable resource for students and professionals in this field. It covers the basic principles and techniques of animal breeding and provides a clear overview of the challenges and opportunities in breeding practice.