Not that my cattle get treats, but i guess small cubes would be fine. I would be careful not to mess up the delicate rumen balance giving all kinds of crazy stuff. Personally i don't like animals that beg, so my dogs don't get treats either. And with a show animal i don't mess with the head to much or scratch their head, cause then in the ring that all they wanna do. I dunno, i guess cubes for me or more feed.