Metabolizable energy (calculated): 3810 kcal/kg; 419 kcal/cup. Bixbi liberty chicken recipe is formulated to meet the nutritional levels established by the aafco dog food nutrient profiles for all life stages including the growth of large size dogs (70 lb. Or more as an adult). Metabolizable energy (calculated): 3810 kcal/kg; 419 kcal/cup. Bixbi liberty chicken recipe is formulated to meet the nutritional levels established by the aafco dog food nutrient profiles for all life stages including the growth of large size dogs (70 lb. Or more as an adult).