Houghton, P.L.; Corah, L.R.; Goehring, T.B.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1988)
When fed MGA (0.5 mg.hd/day) for 14 days, followed by a prostaglandin
injection 17 days later, a total of 736 out of 1112 heifers at 11 locations expressed
signs of estrus within 5 days following the PG injection for a ...