Im not saying deer wont come around,they get used to the cows,and most already are because cows are so popular in these parts.
but deer hear things often long before they see things.and if i had the choice i wouldnt want cows eating up my persimmons while i just put a tree stand up there and i get there and theres cows all over it.deer wont just join the cows in feeding lol

most of the land i hunt has cows,and i get deer every year,but never in the same feild with cows.I just muzzeload and bow hunt and it just isnt no fun with cows around.