title: Behavioural and hormonal changes associated with sexual maturity in layer pullets.
authors: Roslin Institute, Edinburgh, Midlothian, Scotland.
authors: D E
authors: DE
authors: McKeegan
authors: C J
authors: CJ
authors: Savory
mesh_terms: D000374:Aggression / Q000502:physiology; D000818:Animals; D001522:Behavior, Animal / Q000502:physiology*; D002645:Chickens / Q000097:blood / Q000502:physiology*; D004958:Estradiol / Q000097:blood*; D005260:Female; D011374:Progesterone / Q000097:blood*; D012741:Sexual Maturation / Q000502:physiology*
chemical_list: D011374:Progesterone; D004958:Estradiol