I'd feed the parts raw, but I raw feed my animals. I'd feed any of the bits they will eat. Lungs, liver, kidneys, heart, gizzard, head, feet. I'd even let them have the intestine if they'd eat them too. Eating the chicken will not make your dog start going after your chickens. Many people with livestock guardian dog breeds will feed the dogs the same animals they live with and protect. In the past I've fed my dogs groundhogs, squirrels and rabbits, some whole some not. But they never looked at my pets, including rodents and other small animals as food.