The short-term effects of a simulated transfer to higher latitudes on breeding ewes.
D000818:Animals; D001947:Breeding; D003338:Corpus Luteum / Q000033:anatomy & histology; D004971:Estrus; D005260:Female; D005298:Fertility; D007813:Laparotomy; D008027:Light; D011247:Pregnancy; D012756:Sheep / Q000502:physiology*; D013997:Time Factors; D014626:Vaginal Smears