All Natural Chicken Backs.  Frozen 40 lb case.
 
Chicken is a great source of protein for dogs, and it's exactly the sort of food your dog would be eating in the wild.
 
Chicken Backs have an 80% meat to 20% bone ratio that provides a great way to introduce raw food to a kibble fed dog as it discourages eating too quickly. The protein in chicken backs will keep your dog naturally energized, while the calcium in the bones will help nourish their teeth and gums.
 
Other nutrients include vitamin A and selenium, which protects their blood vessels