Rettmer, I.; Stevenson, J.S.; Corah, L.R.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1991)
Pregnancy rates were assessed in suckled
beef cows (n=145) and virgin beef heifers
(n=606) of mixed breeding following an
injection of either 100 or 200 μg of a GnRH
agonist given once on d 11-14 after estrus ...