Butchers Grain Free Tripe Mixed Tins. Our Tripe Mix 6 pack recipes are naturally packed with high-quality protein, calcium for strong bones, Vitamin B12, and the all-important Omega-3 and Omega-6 to support the immune system and promote healthy skin and shiny coats. Unlike other tripe you#ll find, ours is green, because it comes from grass-fed cattle so retains all its natural nutrients. Being grain free this recipe is naturally gluten free, containing no grains or bulkers. This Tripe recipe is Butcher#s original recipe, and has been carefully made since 1987! Tripe is the natural super foods for dogs, with a taste they just love! CompositionBritish Irish Farmed (Chicken 34%, Tripe 13%, Beef 3%), Minerals. Analytical Constituents (%)Protein 8.5Fat Content 6Crude Fibre 0.2Crude Ash 2Moisture Content 80Nutritional Additives (per kg)Vitamins: Vitamin A 1250 I.U., Vitamin D3 250 I.U. Trace Elements (mg/kg): Zinc (3b605) 20, Manganese (3b503) 2.5, Iodine (3b202) 0.5.