The pectoral muscles and the development of thermoregulation in chicks of willow ptarmigan (Lagopus lagopus).
D000375:Aging; D000818:Animals; D001717:Birds / Q000502:physiology*; D001831:Body Temperature; D001833:Body Temperature Regulation; D003080:Cold Temperature; D004576:Electromyography; D024510:Muscle Development; D009132:Muscles / Q000502:physiology*; D009929:Organ Size; D010101:Oxygen Consumption; D012768:Shivering