title: Effect of administration of progesterone and oestrogen on litter size in pigs.
abstract: Progesterone and oestrone alone or in combination were administered to sows during early gestation. A dose of 25 mg progesterone and 12-5 mug oestrone injected together for 10,5 or 2 consecutive days during the implantation interval caused increased litter size at term.
mesh_terms: D000818:Animals; D004970:Estrone / Q000494:pharmacology*; D005260:Female; D008098:Litter Size / Q000187:drug effects*; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology*; D013552:Swine / Q000502:physiology*; D013997:Time Factors
chemical_list: D004970:Estrone; D011374:Progesterone