I have never seen thecattle bother the deer around here. I guess that is because they are use to them. Texas has the cattle. Yesterday I was on the road and noticed a tom and a bunch of hensin a wheat field behind some does feeding, that were about 50 yards from a bunch of cows. I have shot a lot of does while out feeding cattle. I bet the deer will get use to them and it wont be a problem.

Now hogs will bully the deer around. They will bully cows as well.