I start haulin mine to the woods at 6 months. But thats just for manners and handle. They are either in the box, on top, or on a leash. take them that young to try to teach them to be quiet, and mind. i dont let mine start catchin til they are a year.
x3, Ill show mine a shoat at 4mo to see there interest. After that they get carried to the woods and left in the box or I let them run around and get use to bein in the woods. All my dogs rig so I start them on top of the box early.