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.
Foie gras controversy
In 2001, the Director of the New York State Government Affairs & Public Policy Dept. for the American Society for the Prevention of Cruelty to Animals, which is one of America's leading environmental activist groups, wrote a letter to then NYS Attorney General, Eliot Spitzer, asking that the state's foie gras producers be prosecuted for violating animal cruelty statutes.