My dogs are on a completely raw diet and have pork regularly. There is nothing wrong with pork bones. And my dogs don't react in any negative way to pork. But that doesn't mean that it will be ok with your dog. I have one, for example, that explodes at the very sight of lamb near her bowl... If your dogs are raw fed you could give them any type of pork with bones, scale the meal to the size of the dog. If you are just looking for recreational chewing bones and do not intend to feed your dog the meat then a large dog might do well with a good size should roast bone and a small dog could do well with some larger pork rib bones.