title: The effect of oestrus on "free" water intake in zebu-type heifers.
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D002417:Cattle; D004326:Drinking; D004971:Estrus / Q000502:physiology*; D005260:Female; D011247:Pregnancy; D013894:Thirst; D014730:Veterinary Medicine