title: The influence of vitamin E and selenium on ewe prolificacy.
mesh_terms: D000034:Abortion, Veterinary / Q000453:epidemiology; D000818:Animals; D001724:Birth Weight; D005260:Female; D005298:Fertility / Q000187:drug effects*; D011247:Pregnancy; D012643:Selenium / Q000097:blood / Q000494:pharmacology*; D012756:Sheep / Q000502:physiology*; D014810:Vitamin E / Q000494:pharmacology*
chemical_list: D014810:Vitamin E; D012643:Selenium