A pastoral dog can eat all sorts of meats including pork/venison/duck/pheasant/chicken etc etc!
Wild canids eat all sorts; GSD in their country of origin eat all sorts including you will find a great deal of wild boar!
Raw meat varies little in salt content; it is only when it is cured by using salt that the salt content of it changes eg bacon, ham, etc.
If pork does not agree with your dog; don’t feed it.
Vine leaves do not agree with me, so I don’t eat em! :ok: