1. This document is 4HDAP01 of the Florida 4-H Youth Development Program, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published August 1996; Reviewed J 200. 2. James Umphrey, Dairy Science Department at the Florida 4-H Youth Development Program, University of Florida Cooperative Extension, Institute of Food and Agricultural Sciences. COOPERATIVE EXTENSION SERVICE, UNIVERSITY OF FLORIDA, IN STITUTE OF FOOD AND AGRICULTURAL SCIENCES, Christine Taylor Waddill, Director, in cooperation with the United States D epartment of Agriculture, publishes this information to furthe r the purpose of the May 8 and June 30, 1914 Acts of Congress; and is authorized to provide research, educational information and other services only to individuals and institutions that function without regard to race color, age, sex, handicap or national origin. The informati on in this publication is available in alternate formats. Single copies of extension publicat ions (excluding 4-H and yout h publications) are availabl e free to Florida residents from county extension offices. Information on copies for out-of -state purchase is availabl e from Publications Distri bution Center, University of Florida, PO Box 110 011, Gainesville, FL 32611-0011.