Two experiments were conducted to study the effects of
melengestrol acetate (MGA) on inhibition of estrus, post-treatment
conception rates in heifers and rats, and MGA given during gestation
on the reproductive performance in rats. MGA was administered
orally to Holstein heifers and by subcutaneous injection to Sprague-
Dawley rats.
Twenty-four...
The role of the pituitary gland and uterus in regulating ovarian
function in the estradiol-treated gilt and ewe was investigated in two
experiments.
Pituitary gonadotropin content, ovarian follicular development and
corpus luteum function were studied following daily intramuscular
injection of seven gilts with 7 mg of 17β-estradiol from day 11...