For a canine (fox, coyote, dog), I'd get some fresh chicken breasts, with skin still attached, and remove the fresh, uncooked skin and drape that over the wire. Or a long strip of fresh beef of some kind like you would slice as if for jerky. Let than hang on the wire and dry in place. Ouch.
This is how I did my wires.
Neighbor tells me we have a fox in our yard.......they watch it play all the time. That would be between this fence and the top of that house in the background and that is less than 100 yards from where the birds hang out all day long. On the other side of the chicken yard is new ground I"m breaking out for chicken pasture. In the past week I've noticed fresh tracks from two different canines......one large and one small.......and have yet to see one inside the wire or even close to it, and that is with the birds out and about and in full view most days. So they are around, but they stay out.
Bottom wire is about 5 inches off the ground.......right where the lowest clip point is on those white step in posts, and three more above that. One at each of the four lowest clip points. That is it. It is low enough I have no gates......I just step over it. Chickens could easily fly over it and varmints could jump over it, but they don't.
The only thing I've done different that most is this fence. It is powered by a 12 volt electric fencer that tests 16,000+ volts on a fresh charge and not much, if anything, will tangle with it......at least not twice.