Provides deer with the consistent nutritional intake they need to thrive with Purina(R) Antler Advantage(R) Deer 20 ARS. Contains Purina(R) Advanced Rumen Support System that includes seaweed-derived calcium for rumen pH management and key prebiotics for optimal digestion. This nutrition-packed, 20%-protein, pelleted ration supplements the deer's native habitat to provide the nutrition for strong overall health, supporting strong antler growth, density, and strength.