That’s an excellent question. We do have dogs, coyotes, etc in the area, but we do not have an issue with predation on the pigs. But we have bigger pigs which are quite a deterrent in and of themselves as well as our own farm dogs that patrol the property. If you’re in a heavy predation area and have only small pigs I’d recommend one of two things: either make their shelter such that you can close them up at night or in the case of predators that would be a threat both day and night you could include a strand of electric at the top and on the outside of the fences. Unfortunately, even the taller woven wire and cattle panels are not dog or coyote proof.