Donkey milk even exist). In addition, the flavour and appearance of donkey milk have been found to be attractive to children. Equid (donkey and horse) milk can be considered a suitable substrate for probiotic beverage production. The use of fermented equid milk is an ancient tradition in central Asia, like koumiss or airag, a fermented mares milk very popular in Asia and Russia; but there are also traditional variants made from donkey milk. In Mongolia, where koumiss is the national drink, people have a saying that ‘kumys cures 40 diseases’. It is said that Cleopatra, Queen of Ancient Egypt, took baths in
Pig milk few pounds. It was reported to taste "chalky and a little bit salty" and compared to other cheeses "saltier and creamier, yet grainier". The cheese was sold to an anonymous buyer at a children's charity for $2,300 per kilogram. The price fetched was higher than the most expensive variety known as pule cheese, which is made from the milk of the Serbian Balkan donkey. Susanna Montgomery, Countess of Eglinton used to wash her face with pig milk and then drink it. She recommended this treatment to others, as she believed it would help retain one's figure and complexion. Pig milk