Dairy Science: Its Principles and Practice is a comprehensive book written by William Earl Petersen that explores the principles and practices of the dairy industry. The book covers a wide range of topics related to dairy science, including the history of dairy farming, the anatomy and physiology of dairy animals, milk production, milk processing, and dairy product quality control. The book begins with an introduction to the dairy industry and its importance in the global economy. It then delves into the anatomy and physiology of dairy animals, including their reproductive systems, digestive systems, and milk production processes. The book also covers the different types of dairy breeds and their characteristics, as well as the various factors that affect milk production, such as nutrition, genetics, and management practices. Next, the book explores milk processing and the different methods used to produce dairy products such as cheese, yogurt, and butter. It also covers the principles of dairy product quality control, including the testing and analysis of milk and dairy products. Throughout the book, Petersen emphasizes the importance of sustainability and ethical practices in the dairy industry, and provides practical advice for farmers and industry professionals on how to achieve these goals. Overall, Dairy Science: Its Principles and Practice is an essential resource for anyone interested in the dairy industry, from students and researchers to farmers and industry professionals. It provides a comprehensive overview of the principles and practices of dairy science, and offers practical advice for achieving sustainability and ethical practices in this important industry.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.