Williams, J B Control of the preovulatory surge of luteinizing hormone in the hen (Gallus domesticus): the role of progesterone and androgens. [electronic resource] - The Journal of endocrinology Apr 1978 - 57-65 p. digital Publication Type: Journal Article ISSN: 0022-0795 Standard No.: 10.1677/joe.0.0770057 doi Subjects--Topical Terms: Androgens--bloodAnimalsChickens--physiologyCircadian RhythmFemaleLuteinizing Hormone--bloodOvulationProgesterone--blood