I am raising Dwarf Nigerians.....I would like to disbud my bucks......been watching you tube today and even though, I was surgery nurse, that was tough to watch....poor kids. How old do hey need to be? My sire, think he might have gotten a botched job...one side is gone and the other is about 1/2 long. Kind of flaky too! Also, not sure which dehorn er to get the 1/4" ID or the 3/8" ID. I do have a mixed Pygmy /Nigerian buck!