aggression with our Kuvasz Great Pyrenees mix dog
We acquired my parents dog which is kuvasz and Great Pyrenees (jewel). She is very loving and constantly wants attention. We love here dearly. We already had 3 other dogs, a Pomeranian (male), black lab (female) and a 13 year old Shepard Mastiff mix (male). None of our current dogs are aggressive what so ever. Jewel has now attacked our Shepard Mastiff a few times, and it has always been right after feeding. The attack has always been unprovoked from the shepherd mastiff (he was just walking by). Jewel has never shown aggression to the other 2 dogs. We are unsure what to do. Jewel is not fixed but thinking that might help. Is this a common problem with this breed?