title: LH secretion in the cockerel and the effects of castration and testosterone injections.
mesh_terms: D000367:Age Factors; D000818:Animals; D002369:Castration; D002645:Chickens / Q000254:growth & development / Q000502:physiology*; D005246:Feedback; D007030:Hypothalamo-Hypophyseal System / Q000378:metabolism; D007986:Luteinizing Hormone / Q000097:blood / Q000378:metabolism*; D008297:Male; D013739:Testosterone / Q000494:pharmacology
chemical_list: D013739:Testosterone; D007986:Luteinizing Hormone