oh and I forgot to mention that my dogs were raised from babies around cows, horses, goats, etc, etc on a ranch and were not fenced in and could go anywhere. Their first couple of years, they were ok around the other animals, but as they matured, it got to be too much for them and they started chasing all of those animals. Now they are both about 5 years old and I wouldn't risk putting them with livestock animals because I'm sure they would make lunch out of them. They have very high prey drives. Mine are kept very separate from our chickens and their current sheep and horse neighbors.