I have No clue and maybe Nuetered isnt the right word for fixing horses and ponie's.DH has taken one in and it's a male just weaned from mom.Is it to late to have it fixed?.The baby was supposed to arrive today but delay untill tomm.so...I have a friend that says it wont be a good riding pony for the grandson's if it isnt fixed it will be mean.We know it will have to be broken in etc.Hope someone can give me some info.Thanks