This special re-print edition of Sewall Wright's book "Principles of Livestock Breeding" is a short guide to the subject of breeding animals of various types to perfection. Published in 1920 by the US Department of Agriculture this short guide to livestock breeding explores the basics of the common principles that are used to improve livestock and other animals. Topics include The Evolution of Animal Breeding, Reproduction, Details of Hereditary Transmission, Mendelian Heredity in Livestock, Heredity of Form and Function, The Systems of Breeding, Methods of Selection, The Value of Purebreds and more. This will be found to be a valuable resource to breeders of all types of domestic animals who are looking to greatly improve their stock. Note: This edition is a perfect facsimile of the original edition and is not set in a modern typeface. As a result, some type characters and images might suffer from slight imperfections or minor shadows in the page background.