title: Investigation of sperm transport failures in ewes administered synthetic progestagen.
mesh_terms: D000284:Administration, Oral; D000818:Animals; D004971:Estrus / Q000187:drug effects; D005260:Female; D007315:Insemination, Artificial; D008297:Male; D008525:Medroxyprogesterone / Q000008:administration & dosage / Q000494:pharmacology; D011247:Pregnancy; D011278:Pregnanes / Q000008:administration & dosage / Q000494:pharmacology; D011372:Progestins / Q000494:pharmacology*; D012756:Sheep / Q000502:physiology*; D013094:Spermatozoa / Q000166:cytology / Q000187:drug effects*; D014621:Vagina / Q000187:drug effects
chemical_list: D011278:Pregnanes; D011372:Progestins; D008525:Medroxyprogesterone