Relationship of hypothalamic catecholamines and gonadotrophin levels in the chicken.

Animals Castration Catecholamines/metabolism Chickens/physiology Comb and Wattles/growth & development Dopamine/metabolism Epinephrine/metabolism Female Fluorometry Gonadotropins, Pituitary/metabolism Hypophysectomy Hypothalamus/metabolism Luteinizing Hormone/metabolism Male Norepinephrine/metabolism Ovulation Pituitary Hormone-Releasing Hormones Pituitary-Adrenal System Testis/physiology Tritium

Catecholamines Gonadotropins, Pituitary Pituitary Hormone-Releasing Hormones Tritium Luteinizing Hormone Dopamine Norepinephrine Epinephrine