title: A comparison of the transport of spermatozoa in spayed and entire ewes.
mesh_terms: D000818:Animals; D001284:Atrophy; D002369:Castration; D002465:Cell Movement; D002584:Cervix Uteri; D004717:Endometrium / Q000473:pathology; D004958:Estradiol / Q000494:pharmacology; D004971:Estrus; D005187:Fallopian Tubes; D005260:Female; D007315:Insemination, Artificial; D008297:Male; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology; D012756:Sheep / Q000502:physiology*; D013094:Spermatozoa / Q000502:physiology*; D013997:Time Factors; D014599:Uterus; D014621:Vagina
chemical_list: D011374:Progesterone; D004958:Estradiol