The role of the crop in the feeding behaviour of the domestic chicken.
D000818:Animals; D001835:Body Weight; D002645:Chickens / Q000502:physiology*; D003426:Crop, Avian / Q000000981:diagnostic imaging / Q000502:physiology*; D005247:Feeding Behavior; D005508:Food Deprivation; D008297:Male; D011859:Radiography