Natural Instinct Duck Carcass x 2 £4.50 Quantity: at £4.50 each Add To Basket 4 in stock. Two pieces of duck carcass for dogs, frozen and vacuum sealed in bags. Ideal served as a meal replacement, or used individually as a treat. All dogs should be supervised when feeding a bone. Ingredients100% British duck. AnalysisMoisture 64.5%, Protein 16.3%, Fat 13.8%, Fibre 0.5%, Inorganic Matter 4.5%.