I don't think it does, you still have to look at the animal to know when to put the thing on and they are not 100% anyway, in years to come when they bring out something else maybeI think it stops skills from being passed on, same with breeding figures I still try and feel their bones, a friend reckons he can tell a cow within 12 hours so he moves them out of cubicles, but I don't seem to have got the feel for it yet.
as for breeding figures well if we never looked at the animal I wonder where that would end up ?