Notes on parturition in the sheep.
D000818:Animals; D001724:Birth Weight; D036861:Delivery, Obstetric / Q000662:veterinary; D005321:Extraembryonic Membranes / Q000502:physiology; D005260:Female; D007743:Labor, Obstetric; D011247:Pregnancy; D011312:Pressure; D012756:Sheep; D014427:Twins; D014599:Uterus / Q000502:physiology