Transport and development of embryos transferred to the oviducts and uteri of entire and ovariectomized ewes

摘要

Summary. Embryos collected from donor ewes 2 or 3 days after oestrus were transferred synchronously to the oviducts or uterine horns of entire or ovariectomized ewes and 2–4 days after transfer the embryos were recovered by flushing the uteri and oviducts. Ovariectomized ewes were treated with all, or part, of a steroid hormone regimen designed to simulate ovarian secretion, in entire ewes of progesterone during the luteal phase before oestrus, of oestradiol around oestrus and of progesterone during the luteal phase after oestrus.