How long does it take for a maiden mare to give birth?

Maiden mares are female horses that have never given birth before. The gestation period for a horse is approximately 11 months, or 340 days. This means that it takes about 11 months from the time a maiden mare is bred until she gives birth to her foal.

Your mare is a bay roan her sire blue and roans go back 3 generations on the top side If you breed to will get roan?
Do they artificial insemenate race horses?