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
The force feeding of animals for non-medical purposes, essential to current foie gras production practices, is explicitly prohibited by specific laws in Austria, the Czech Republic, Denmark, Finland, Germany, Italy, Luxembourg, Norway, Poland, or following interpretation of general animal protection laws in Ireland, Sweden, Switzerland, the Netherlands and the United Kingdom. However, foie gras can still be imported into and purchased in these countries.
Most of these countries do not currently produce foie gras, nor have they in the past. Thus, these bans have stopped actual foie gras production in very few countries.