This second edition text focuses on the scientific aspects of the animal agriculture industry. New chapters on the beef, swine, sheep, horse, and small animal industries have been added for comprehensive coverage of all livestock animals. This text includes background on the various segments of the livestock industry and includes basic principles of biology to help students understand the process of producing animals for human utilization. Features such as student objectives and activities help students understand the material. A CD-ROM that includes a lab manual, teacher's resource guide, computerized test bank, and transparency masters is available to help instructors organize and plan lessons.