Foie gras
In 2014, the whole of the EU produced approximately 25,000 tonnes of foie gras – 23,000 tonnes of duck foie gras and 2,000 tonnes of goose foie gras. The same year, France was producing 72% of world foie gras production of which 97% was from ducks.
In 2015, it was reported that in France, sales of foie gras may be waning and an OpinionWay poll found that 47% of the French population supported a ban on force-feeding.
Foie gras
The ideology behind foie gras production is the ability that some waterfowl have to expand their esophagus and to gain weight, particularly in the liver, in preparation for migration. Unlike many birds, geese and ducks lack a crop. In the wild, esophageal dilation allows them to swallow large foodstuffs, such as a whole fish, for later digestion. Wild geese may consume 300 grams of protein and another 800 grams of grasses per day. Farmed geese allowed to graze on carrots adapt to eating 100 grams of protein, but may consume up to 2500 grams of the carrots per day. The increasing amount of feed given prior to force-feeding and during the force-feeding itself cause expansion of the lower part of the esophagus.