title: The influence of various degrees of confinement and supervision on the incidence of dystokia and stillbirths in Hereford heifers.
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D004420:Dystocia / Q000453:epidemiology / Q000662:veterinary*; D005260:Female; D005313:Fetal Death / Q000453:epidemiology / Q000662:veterinary*; D006799:Housing, Animal; D009520:New Zealand; D011247:Pregnancy