Ovarian Involvement in the Suppression of Luteinizing Hormone in the Incubating Turkey (Meleagris gallopavo)

A series of experiments were conducted to elucidate the role of the ovary in incubation behavior-associated luteinizing hormone (LH) suppression. Ovariectomy (Ovx) increased (p 0.05). Ovx had no effect on intramuscularly injected mammalian luteinizing hormone-releasing hormone (4 µg/kg i.m. > induced LH in incubating hens, but enhanced the LH response in laying hens. Serum LH and prolactin (Prl) were unaffected by Ovx, and nest deprivation (ND) decreased Prl levels (p