We don't have hogs, nor use feed pens. Coyotes? We have them, but a pen is not going to keep a coyote out.
DC not saying it has never happened but I have never seen a pic of a Yote in my pen or pics on here? So your saying that a coyote will jump over hog panels if they really want something inside of it. I guess a 34" jump is not to high just never seen it.