Check your Yellow Pages. Pork is not suitable and its use not advised. Fish may be fed sparingly as treats, but is not recommended to be used as the meat ingredient in the recipe. Raw fish fed in excess can lead to a Thiamine deficiency. This presents a problem, since we urge care givers to feed meat raw.
Cats also get all too easily hooked on the potent taste of fish.
However, only poultry, such as chicken, quail, or Cornish hen, or rabbit can be processed in this fashion, thereby greatly restricting meat variety available to the care giver. Chicken has a very different amino acid balance than red meats, and may induce deficiencies when feed long term as the only major protein source. Necks and backs come with little meat, therefore supplying the cat with too much Calcium. Also, don't forget to include organ meats, and don't feed poultry only. If you can not source rabbit for variety, you should resort to red meat with bone meal as a vital addition to your cat's meal plan.