Other than that, they serve as riding animals, both for the daily work of the nomads and in horse racing. Mongol horses were a key factor during the 13th century conquest of the Mongol Empire. ... Men do the herding, racing and make the tack. Traditionally, men (or in modern times, women) also milk the mares.
One of the main reasons why this occurred was because demand for furs increased dramatically in Europe, due to their value that could be used to buy spices and other goods.