title: Luteinizing hormone release and androgen production of avian hybrids in response to luteinizing hormone releasing hormone injection.
abstract: The levels of luteinizing hormone (LH) and androgens were measured in sterile avian hybrids. Guinea fowl-chicken and peafowl-guinea fowl hybrids were bled before and after injection with LH- releasing hormone (LHRH). The preinjection LH levels for the guinea fowl-chicken hybrids were below or at the very lower limit of the assay sensitivity and the peafowl-guinea fowl hybrids averaged 1.3 ng/ml. Within 10 min after LHRH injection, LH had increased dramatically in both hybrids and then began to slowly decline. Androgen levels in the guinea fowl-chicken hybrids increased from 16.2 pg/ml to 95.2 pg/ml and continued to increase, reaching 287 pg/ml at the last bleeding 60 min after injection.
mesh_terms: D000728:Androgens / Q000097:blood*; D000818:Animals; D002645:Chickens / Q000235:genetics*; D007987:Gonadotropin-Releasing Hormone / Q000494:pharmacology*; D006824:Hybridization, Genetic; D007986:Luteinizing Hormone / Q000097:blood*; D008297:Male; D011200:Poultry / Q000097:blood / Q000235:genetics*
chemical_list: D000728:Androgens; D007987:Gonadotropin-Releasing Hormone; D007986:Luteinizing Hormone