ACANA High-Protein Biscuits dog treats are crafted with five ingredients, including nutrient-rich liver. These superpremium dog treats are also protein-packed – with 85% of total protein coming from animal ingredients. High-Protein Biscuits dog treats are a treat for any dog. The biscuits are available in two sizes, one for small breeds and a second for medium and large breeds, with four recipes: Chicken Liver, Beef Liver, Pork Liver and Turkey Liver.