Don't know how they are with livestock.
I'd think if a pup was brought up with livestock, it wouldn't even pay attention to Livestock once it knew they were off limits. No different than breaking a bird dog off from deer. I have had bird dogs of one kind or another all of my adult life. At one time I had a GSP and a GWP at the same time that I was raising pheasants. Neither one of them ever paid any attention to the birds behind the fence.......but out in the field, once those same birds were released, it was a different story.