Hi there, I too am going through exactly what you have experienced with raw feeding different meats. I started Nelson on chicken but it has not proven to agree with Nelson either, not becasue of the poop side as that was actually good but for the scratching and large red itchy lumps and rashes that appear within a few hours of him having it!! He has been his best yet with very limited scratching from Pork, same as you but I too was wandering if it was a suitable meat to feed on a long term basis as the meat I have been getting is actually quite fatty in parts. I think some fat is good for them but not sure how much?? I am yet to try some of the other meats like rabbit, venison and beef.