In many nonprimate mammalian species, cyclical regression of the corpus luteum
(luteolysis) is caused by the episodic pulsatile secretion of uterine PGF2α, which acts either …

Publisher Summary This chapter discusses the control of luteal function in domestic
ruminant animals. It focuses on data regarding the regulation of receptors for luteinizing …

Studies on the control of PGF 2α secretion by hormone receptors in the ovine uterus based
on in vivo infusion experiments in the autotransplanted uterus are summarized. In addition …

The endogenous concentrations of prostaglandins F2α (PGF2α) and E (PGE) were
measured during the luteal phase of the menstrual cycle in the endometrium from 14 women …

Three experiments were conducted to determine the day at which the bovine embryo first
affects luteal lifespan and if intrauterine infusion of homogenates of bovine embryos would …

Trophoblastin, an antiluteolytic component from the embryo, was identified in the ewe by the
means of intrauterine injections of homogenates from trophoblasts at 14–16 days …

The concentration of LH in jugular venous plasma and the ovarian secretion of estradiol was
measured every 10 min for periods of 60 or 120 min on 28 occasions in 13 ewes with utero …

Oestradiol acting on a progesterone-primed uterus stimulates prostaglandin (PG) F2α
synthesis by the endometrium. In some species (notably the sheep, cow and goat) oxytocin …

The responses of pregnant and nonpregnant ewes on day 13 post-estrus to a dose of
prostaglandin (PG) F2α known to be luteolytic in nonpregnant ewes were compared …

Secretion of progesterone from the corpus luteum is required for normal pregnancy in all
domestic animals. However, if pregnancy does not occur following estrus and mating …