It smells horrible but your dog will love it. Tripe is fantastic for building muscle and keeping a healthy immune system. It's full of omega 3 and omega 6 and gentle on stomachs, so if your dog is a bit under the weather or even transitioning on to raw, feed tripe.
Dog Meats Bone rating using the All About Dog Food ratings calculator
Analytical Declarations: Fat 14.25%, Moisture 69.9%, Ash 1.5%, Fibre 0.2%, Protein 14.4%