Induction of oestrus and ovulation by means of prostaglandin and gonadoliberin (GnRH) treatment in an old mare barren for two breeding seasons.
A 17-year-old Nooitgedacht mare was presented in mid-summer after failing to conceive during the previous 2 breeding seasons. The mare conceived to service during a PG-induced oestrus when synthetic GnRH was used to induce ovulation.
D000818:Animals; D006063:Chorionic Gonadotropin / Q000627:therapeutic use; D015237:Dinoprost / Q000031:analogs & derivatives*; D004971:Estrus / Q000187:drug effects*; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000627:therapeutic use*; D006736:Horses / Q000502:physiology*; D010062:Ovulation Induction / Q000662:veterinary*; D011247:Pregnancy; D011461:Prostaglandins F, Synthetic / Q000627:therapeutic use*
D006063:Chorionic Gonadotropin; D011461:Prostaglandins F, Synthetic; D007987:Gonadotropin-Releasing Hormone; D015237:Dinoprost; C010714:dinoprost tromethamine