Electric tends to be the preferred method of fencing for most pigs. That’s because pigs train quickly and easily to electric. This is partially due to their intelligence but also because of the fact that they have large, wet noses and very little hair - there’s not much to insulate them from the shock! Often, all you need is two strands of fencing to keep the hogs in - but I recommend three or four so you don’t have to worry about it. For larger hogs, two wires placed at 10 and 18 inches above the ground are essential, with another ower wire added in for smaller pigs or piglets.