Performance and physiological variables in broiler chicken lines differing in susceptibility to the ascites syndrome: 2. Effect of ambient temperature on partial efficiencies of protein and fat retention and plasma hormone concentrations

ascite ascites ascitis aves de corral biological differences broiler chickens corps gras energy metabolism facteur de croissance igf factor de crecimiento igf fats grasas hormonas de la tiroide insulin-like growth factor line differences metabolism metabolisme metabolismo metabolismo energetico oxygen consumption pollo de engorde poulet de chair poultry protein metabolism somatotropin somatotropina somatotropine temperatura temperature thermoregulation thyroid gland thyroid hormones thyroxine tiroxina triiodothyronine triyodotironina volaille