Applaws Cat Tuna Fillet with Crab in Broth. Applaws Tuna Fillet with Crab in Broth contains nothing more than the ingredients listed and is a 100% natural complementary pet food for adult cats. Composition Tuna Fillet 70%, Fish Broth, Crab 5%, Rice. Analytical Constituents Protein 13% Crude Fibre 0.1% Crude Fat 1% Crude Ash 1% Moisture 84% Additives None