Gleghorn, J.F.Marston, T.T.Wankel, L.E.2010-08-062010-08-062010-08-06http://hdl.handle.net/2097/4515A protocol to make anestrous cows more likely to cycle prior to estrous synchronization would greatly enhance reproductive efficiency. Ease of application, availability, and low cost make feeding melengestrol acetate (MGA) a good choice in such a protocol. MGA, used as a progestin “primer,” has no detrimental effects on cows that are already cycling and reduces the number of cows expressing short cycles.BeefMGAPostpartum intervalPregnancy rateShort cycleShort-term feeding of MGA to postpartum cows prior to the breeding seasonConference paper