Foie gras
The technique of gavage dates as far back as 2500 BC, when the ancient Egyptians began keeping birds for food and deliberately fattened the birds through force-feeding. Today, France is by far the largest producer and consumer of foie gras, though it is produced and consumed worldwide, particularly in other European nations, the United States, and China.
American Veterinary Medical Association
The AVMA has voted on several proposals to take a formal stand against the forced feeding of birds to make foie gras. Although foie gras has been banned in many countries in Europe, as well as in the U.S. state of California, because of an absence of science specifically addressing the welfare aspects of foie gras production, as well as conflicting opinions among its membership, the AVMA opted not to take a stand either for or against foie gras. The AVMA has published a welfare implications of foie gras production backgrounder.