Luteotropic Properties of Luteinizing Hormone and Nature of Oxytocin Induced Luteal Inhibition in Cattle

Abstract

Fifty-three Holstein heifers were used to study the effects of oxytoein administered alone and in combination with various gonadotropins on the weights and progesterone contents of corpora lutea. Pituitary gonadotropin levels were compared in untreated and oxytocin-treated heifers at three stages of the estrous cycle.