Progestin impregnated vaginal pessaries for estrous cycle synchronization in sheep.
D000818:Animals; D004971:Estrus / Q000187:drug effects*; D005260:Female; D010570:Pessaries / Q000662:veterinary*; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology*; D012756:Sheep
D011374:Progesterone