Zignature Goat Formula Dry Dog Food at Barking Dog Bakery & Feed. Our Goat Formula is 50% lower in fat than beef and 40% lower in saturated fat than chicken. That makes it one of the healthiest meat options for your dog. It's also a novel protein source, and together with a grain-free recipe, our Goat Formula is a great option in elimination diets for dogs with food sensitivities. Goat is the most popular and widely-enjoyed meat in the world. It is also one of the most nutritious protein sources, packed with vitamins, minerals, and essential nutrients. Zignature Goat Formula - Learned from Nature, Crafted to Perfection.