Applaws Cat Tuna Fillets with Prawn in Broth. Applaws Tuna Fillet with Prawn in Broth contains nothing more than the ingredients listed and is a 100% natural complementary pet food for adult cats. Composition Tuna Fillet 52%, Fish Broth, Prawn 23%, Rice. Analytical Constituents Protein 14% Crude Fibre 1% Crude Fat 1% Crude Ash 2% Moisture 82% Additives None