My brother mentioned something last night that I had never thought of. Have any of you ever been around a spayed mare? He has a grade filly that will eventually be the horse for his newborn daughter and he said something about spaying her to keep her temperment more even for a young rider since he never plans to breed her. I knew that they were spaying cattle now but never thought about doing it to a horse. What are ya'lls thoughts on this? Is it a sensible idea? Will it really help her temperment?