Pups first look at a hog

Ok, so I put the pups back in with the shoats today and the yellow brindle pup turned on! At first he would just growl and snap at them and then he started baying. They got a lot rougher with both of them baying and the female caught one of the shoats when it ran past her. They were both nipping them on the rear when they turned and kept them facing pretty well. I got the female off of the shoats ear and turned them back loose again and she bayed but was really in their face with it. They may work out if they have the hunt and bottom to them that their mama has according to the guy that they came from.