Ontogeny of mating behavior in the chicken.
D000367:Age Factors; D000818:Animals; D002642:Chick Embryo; D002645:Chickens / Q000254:growth & development*; D002784:Cholesterol / Q000378:metabolism; D004958:Estradiol / Q000494:pharmacology*; D005260:Female; D007031:Hypothalamus; D008297:Male; D009186:Myelin Sheath / Q000254:growth & development; D012726:Sexual Behavior, Animal; D013739:Testosterone / Q000494:pharmacology*
D013739:Testosterone; D004958:Estradiol; D002784:Cholesterol