Merrick Lamb Filet Squares Lamb Lung Dog Treats are a wonderful treat for the love of your life, your dog. These treats are high in protein and help provide the energy that your dog needs. Puppies to Senior dogs equally enjoy this treat due to its softer consistency and texture. Since these treats are more tender than most, they can be broken into multiple treats for training and rewarding. Dogs love natural treats and our Lamb Filet Squares fulfill this craving.