or if you want to make things very straightforeward just cut a 3 or 4 day old pups tail to the required length with a resonable knife and put it back with its mother. job done.
never done it myself bud,the only vet who cut them off put powder on the end and sewed it. i think it would heal cleaner with less scaring don't you??
waidmann
if "just cutting off" then
a, make sure you are between the vertbrae
b,push the skin back(away from the tip) and put a stitch in the end when done(powder the wound before sewing).
as i said before its illegal if you are not qualified.
w