This is my first time raising livestock, but I applied a lot of the advice that I got here when I asked about fencing. Unfortunately, my Durocs keep getting out. I'm surprised that they can dig as well as they can considering their hoofs, but my Durocs keep going until they've rooted below the chicken wire in the ground. I'd try an electric fence, but their pen isn't near a power source and I can't afford to buy and run a generator just for that. Any suggestions?