Since animals were first domesticated, animal breeders have been using selective breeding to determine which animals will become parents of the next generation. By "e;breeding the best to the best,"e; employing a certain degree of inbreeding, considerable culling, and selection for "e;superior"e; qualities, one could develop a bloodline or "e;breed"e; superior in certain respects to the original base stock. The basic concepts of this book impart rudimentary knowledge for the students and research scholars.