I generally start by not letting them ever get in the habbit chewing on one. I dont leash them, just block them by myself or someone else making a barrier w/ their boddy between the pup and the hog. Make him stay back and push him further and further back. I will usually repeat the same verbal command to them like "caught" or "back". After a while (may take several hunts) they will figure out you arent going to let them have it and will move on.
Do not beat, scold, or SHOCK them as this is counter productive. They caught it and did nothing wrong.
