title: Pharmacological disruption of broodiness in White Rock domestic fowls.
abstract: The administration of bromocriptine (CB154) to broody hens (Gallus domesticus) impaired resumption of lay. Resumption of lay was stimulated in broody birds treated with clomiphene citrate (an anti-oestrogen) alone or following CB154 administration. The increased oviposition rate following a single intramuscular injection (21 mg) of clomiphene was long lasting, persisting for at least 16 weeks after treatment. Treatment of broody hens with clomiphene consistently improved (by 4%) the hatchability of the fertile eggs subsequently laid.
mesh_terms: D000818:Animals; D001971:Bromocriptine / Q000494:pharmacology*; D002645:Chickens / Q000502:physiology*; D002996:Clomiphene / Q000494:pharmacology*; D004357:Drug Synergism; D005260:Female; D009425:Nesting Behavior / Q000187:drug effects*; D010058:Oviposition / Q000187:drug effects*
chemical_list: D002996:Clomiphene; D001971:Bromocriptine