Remove and discard half of the chicken skin. Remove the neck, wings, and spine as well. Grind the remainder of the chicken, using only the thighs, legs, breast, and giblets. You will need a grinder or potent blender to avoid small bone fragments in the food.
Mix the salmon oil, vitamin E capsules, and the remaining ingredients in a small bowl.
Stir the vitamin mixture into the ground chicken mixture.
Scoop the raw food into ice cube trays, and place them in the freezer.
Once frozen, remove the raw cubes from the trays, and store them in a freezer-safe container.
To serve, thaw the food cubes in the refrigerator overnight before serving.