ASC-132: Using MGA to Shorten the Beef Breeding Season

Issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, C. Oran Little, Director of Cooperative Extension Service, University of Kentucky College of Agriculture, Lexington, and Kentucky State University, Frankfort. Issued 12-91—10M The MGA double-injection prostaglandin system offers cattlemen the opportunity to maximize estrous response and fertility during the synchronized periods. This system also provides producers the chance to inseminate more females during the first two weeks of the breeding season. The additional number of cows or heifers that can be inseminated with a second injection of prostaglandin benefits producers when they attempt to take full advantage of AI and inseminate as many females as possible over a relatively short period.