Mares' Milk

I learned something while watching the Discovery channel.  On the Mongolian Plains, people drink mares' milk.  Since the female horses only give up their milk when their foals are present, the men have to catch the foals first.  The mares go to the captured foals, and the men tether them and milk the mares like farmers here  milk cows.  The men then release the horses and take the buckets of  mares' milk back to their dwelling places.  The women mix in an ingredient and they churn it until it becomes a nutritious drink called airog.
To me, it seemed strange to watch horses, and not cows,  being milked by humans. It certainly was not strange to the men of the plains; they were simply doing what is necessary to provide nutrition to their families.
All I have to do is go to the market.
TTYS,
Syllvia