just get u a shock collar and start out on low and bump her with it when she starts barking at the cows and if low doesn't do it keep increasing it till it does... ALSO the best way to deer break is to take her and turn her loose on a deer u can see like in a field with a shock collar on her and if she runs the deer burn her up and I mean hold it down on her but don't encourage her to run the deer and wait till she gets to where the deer was standing till u shock her so she can get a good wiff of it
STANDING REED CREEK KENNELS
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"COONAHOLIC"
IT'S ALL ABOUT THE DOGS!!!