3 strands of barb wire will keep the cattle out, and is no problem for the deer. In fact, if you keep a close watch on the fence, it will tell you whether does or bucks are visiting. Check the barbs for hair caught as they go through the fence, usually white belly hairs on top wires, dark hairs on bottom wires. Does will normall crawl under the bottom wire if not set too low. Bucks, because of their racks will usually jump the fence, afraid of getting hung up. Depends on their rack, buttons and small forks will follow the does.

Russ