Cooking Instructions/Comments : Fill a twelve quart pressure cooker one third full of water, add chickens, including giblets, and pressure cook for two and one half hours. Using slotted spoons, remove chicken from pot, leaving liquid. Add veg and rice to liquid, and pressure cook for thirty minutes. While veg are cooking, mince chicken, bones and all. (The bones will be soft.) When veg are cooked, return chicken to the pot, and stir well. Freeze in suitably sized containers. For smaller pressure cookers, recipe may be halved. Serve with regular dog food or alone.