Dystocia in the heifer.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000209:etiology*; D036861:Delivery, Obstetric / Q000662:veterinary*; D004420:Dystocia / Q000209:etiology / Q000662:veterinary*; D005260:Female; D011247:Pregnancy; D013045:Species Specificity