Animal genetics is the study of the genes and heredity traits amongst animals. It involves the breeding and genetic manipulation of superior quality animals primarily to achieve disease resistance. It is primarily applied to the areas of animal husbandry and livestock management. Animal genes are also studied to understand the evolution, growth and anatomy of animals. This book is a valuable compilation of topics, ranging from the basic to the most complex advancements in this field. Different approaches, evaluations and methodologies in the area of animal genetics have been included herein. It includes contributions of experts and scientists, which will provide innovative insights into this discipline.