Merrick Backcountry Grain Free Large Breed Adult Dry Dog FoodCater to the needs of your large dog with Merrick Backcountry Grain Free Dog Food, Large Breed Recipe. Real deboned chicken is the first ingredient in this natural, with added vitamins, minerals, and nutrients recipe, a high protein dog food that helps big dogs maintain lean muscle mass and healthy energy levels. This real meat dog food with chicken and lamb contains a holistic blend of kibble and freeze dried raw pieces inspired by an ancestral