title: Progestagen induced sperm breakage in the sheep vagina.
mesh_terms: D000818:Animals; D003338:Corpus Luteum / Q000502:physiology; D004971:Estrus; D005260:Female; D007315:Insemination, Artificial / Q000662:veterinary; D008297:Male; D008525:Medroxyprogesterone / Q000008:administration & dosage / Q000494:pharmacology*; D011247:Pregnancy; D012756:Sheep / Q000502:physiology*; D013094:Spermatozoa / Q000166:cytology / Q000187:drug effects*; D014621:Vagina
chemical_list: D008525:Medroxyprogesterone