Work them Pet Bulls!
I have my pup on Blue buffalo grain free so the protein count is high. I have friends that own a great dane pup and another friend who has a mastiff pup. They don't feed a food high in protein because the XL breeds grow to fast and the high protein foods can cause them to mature more rapidly and lead to joint problems. Even though bullys and apbt aren't XL breeds could to much protein have an adverse affect on our puppies/dogs?