Amazon.com description: Product Description: The seventh edition of this classic text offers expanded material on traditional Dairy Herd Improvement (DHI) records, a new chapter on the computer as a dairy management tool, increased coverage of financial management, and thoroughly revised chapters on dairy nutrition that include the latest concepts in protein nutrition, forage evaluation, and feeding management. Like previous editions, the text focuses on showing how to use current tools and practices of successful dairy herd managers to produce and market milk and cattle more profitably.