Poultry
In some countries, geese and ducks are force-fed to produce livers with an exceptionally high fat content for the production of "foie gras". Over 75% of world production of this product occurs in France, with lesser industries in Hungary and Bulgaria and a growing production in China. "Foie gras" is considered a luxury in many parts of the world, but the process of feeding the birds in this way is banned in many countries on animal welfare grounds.
Egyptian cuisine
Foie gras, a well-known delicacy, is still enjoyed today by Egyptians. Its flavor is described as rich, buttery, and delicate, unlike that of an ordinary duck or goose liver. Foie gras is sold whole, or is prepared into mousse, parfait, or pâté, and may also be served as an accompaniment to another food item, such as steak. The technique involves gavage, cramming food into the throat of domesticated ducks and geese, and dates as far back as 2500 BC, when the ancient Egyptians began keeping birds for food.