I have my chickens set up in a renovated dog kennel that the previous owner left. I just wrapped the top with chicken wire. It's a good sized pen about 6' x 6'. As for predators we have possums but not much else. The biggest problem is my own two dogs. I have a 150 pound irish wolfhound and a 12 pound mutt. Both of them are very determined to get in. Since the entire kennel is metal I was thinking it would be easy to electrify the whole thing. I was just wondering if anyone has done this before and what they used. What voltage should I be shooting for? Would there be any I'll effects to my birds if they touch it?