Gelding help?

Is there any thing I can do about changing my geldings to stallions or mares? 
thanks!

nope. once a horse has been gelded it will always be a gelding.
inbred mares and inbred stallions can have their sex changed with a loki' dagger, but gelding a stallion is permanent. 

Kahzie is correct about Geldings being unable to be changed back, once you're gelded you're gelded for life. But I think they meant unbred instead of inbred when talking about changing mares and stallions, since you cannot use a Loki's Dagger on a horse that has already had a foal. The horse's pedigree does not matter, but the foals it has do.