younger mares

What Age Can You Put A Horse In Foal? Generally, assuming a filly is healthy and on a good plan of nutrition, she can be bred as early as two years of age, although many breeders suggest waiting until three years of age. Mares can continue to produce foals well into their late teens or

Should A Mare Be Bred Every Year? Because the mare’s gestation is 345 days in length (11 months plus a week), and she comes into heat so quickly after giving birth, it is feasible to think that she could conceive and produce a foal each year. This doesn’t mean however that it is imperative that