I have three adult does that are in the process of being registered. They are all full size and are dairy does. Unfortunately they were not tattooed as kids. I'm unsure whether I will tattoo them as I don't plan on showing them, but I may want them on linear appraisal or milk test in the future. As I understand it they would have to be tattooed to do either of these things with them. Is that true? If so, how would you experts recommend tattooing them? I don't want to traumatize them and make them hate me. And I really don't want them to hurt themselves trying to get away from me when I do it... What do you guys do, or what would you do in my situation? Thanks in advance!