Originally Posted by smrobs
Yes, it will. It usually takes quite a bit of time though. Depending on the horse it may take months or years, also depending on how much you cut off.
It does depend on the horse, I have a gelding who's tail I TRIMMED to his fetlocks about 4 YEARS ago and it's just now reached the ground again...mind you I won't be cutting it anytime soon
Then my 4 year old while body clipping his rear end decided to flip his GORGEOUS long white and red tail into my face, catching the clippers in the process... ended up with it shaved all the way to the tail bone on one side. It took a little over 2 months for it to not only get back to where it was but be LONGER. And it was noticeable in the beginning because the hair in the middle of his tail is RED and both sides of his tail are white, pure white.
I posted a picture of him, now imagine that whole right side of his tail gone, completely!