title: Failure of exogenous melatonin to influence the maintenance or dissipation of photorefractoriness in the canary, Serinus canarius.
mesh_terms: D000818:Animals; D002171:Canaries / Q000502:physiology*; D008027:Light; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D008550:Melatonin / Q000494:pharmacology*; D010775:Photic Stimulation; D013737:Testis / Q000378:metabolism
chemical_list: D007986:Luteinizing Hormone; D008550:Melatonin