Join Date: Feb 2012
Location: Alberta, Canada
Moving back onto the original topic;
My BO has a 21 year old brood mare. She raced, competed in endurance and then was bred. She's had 4 foals, 2 consecutively, the others years apart. She has been bred back this year after 2 years open. She has a great vet that specializes in equine reproduction. His advice was to watch her condition, and to keep her in foal every year. If she starts loosing condition, or has problems reproductively, its time to call it quits. Other wise, as long as they're healthy your best bet the older they get is to keep them in foal.