title: Effects of lesions in the medial preoptic region on precocial copulation in the male chick.
mesh_terms: D000367:Age Factors; D000818:Animals; D001835:Body Weight; D002645:Chickens; D003129:Comb and Wattles / Q000033:anatomy & histology; D003307:Copulation / Q000187:drug effects; D008297:Male; D003336:Tectum Mesencephali / Q000502:physiology*; D013739:Testosterone / Q000494:pharmacology
chemical_list: D013739:Testosterone