Foie gras

Foie gras (French for 'fat liver'); French: [fwa ɡʁɑ], English: /ˌfwɑːˈɡrɑː/ ^ⓘ) is a specialty food product made of the liver of a duck or goose. According to French law,^[1] foie gras is defined as the liver of a duck or goose fattened by gavage (force feeding).

Foie gras

Foie gras with mustard seeds and green beans in duck jus
Type	Whole, mousse, parfait, or spread
Main ingredients	Liver of a duck or goose
Cookbook: Foie gras   Media: Foie gras

A Mulard duck, the hybrid used most frequently for foie gras production

Foie gras is a popular and well-known delicacy in French cuisine. Its flavour is rich, buttery, and delicate, unlike an ordinary duck or goose liver. Foie gras is sold whole or is prepared as mousse, parfait, or pâté, and may also be served as an accompaniment to another food item, such as steak. French law states, "Foie gras belongs to the protected cultural and gastronomical heritage of France."^[2]

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.^[3] Today, France is by far the largest producer and consumer of foie gras, though there are producers and markets worldwide, particularly in other European nations, the United States, and China.^[4]

Gavage-based foie gras production is controversial, due mainly to animal welfare concerns about force-feeding, intensive housing and husbandry, and enlarging the liver to 10 times its usual volume. A number of countries and jurisdictions have laws against force-feeding and the production, import, or sale of foie gras.

History

 

A bas relief depiction of overfeeding geese

Ancient times

As early as 2500 BC, the ancient Egyptians learned that many birds could be fattened through forced overfeeding and began this practice. Whether they particularly sought the fattened livers of birds as a delicacy remains undetermined.^[5][6] In the necropolis of Saqqara, in the tomb of Mereruka, an important royal official, there is a bas relief scene wherein workers grasp geese around the necks to push food down their throats. Tables are positioned to one side, piled with food pellets and a flask for moistening them before feeding the geese.^[6][7][8]

The practice of goose fattening spread from Egypt to the Mediterranean.^[9] The earliest reference to fattened geese is from the 5th-century-BC Greek poet Cratinus, who wrote of geese-fatteners, yet Egypt maintained its reputation as the source for fattened geese. When the Spartan king Agesilaus visited Egypt in 361 BC, he noted Egyptian farmers fattened geese and calves.^[6][10]

It was not until the Roman period; however, that foie gras is mentioned as a distinct food, which the Romans named iecur ficatum;^[11][12][13] iecur means liver:^[14] and ficatum derives from ficus, meaning fig in Latin.^[15] The emperor Elagabalus fed his dogs on foie gras during the four years of his reign.^[16] Pliny the Elder (1st century AD) credits his contemporary, Roman gastronome Marcus Gavius Apicius, with feeding dried figs to geese to enlarge their livers:

"Apicius made the discovery that we may employ the same artificial method of increasing the size of the liver of the sow, as of that of the goose; it consists in cramming them with dried figs, and when they are fat enough, they are drenched with wine mixed with honey and immediately killed."

— Pliny the Elder, Natural History, Book VIII. Chapter 77^[17]

Hence, the term iecur ficatum, fig-stuffed liver; feeding figs to enlarge a goose's liver may derive from Hellenistic Alexandria, since much of Roman luxury cuisine was of Greek inspiration.^[18] Ficatum was closely associated with animal liver and it became the root word for "liver"^[19] in each of these languages: foie in French,^[20] hígado in Spanish, fígado in Portuguese, fegato in Italian, fetge in Catalan and Occitan and ficat in Romanian, all meaning "liver"; this etymology has been explained in different manners.^[21][22]

Postclassical Europe

After the fall of the Roman empire, goose liver temporarily vanished from European cuisine. Some claim that Gallic farmers preserved the foie gras tradition until the rest of Europe rediscovered it centuries later, but the medieval French peasant's food animals were mainly pigs and sheep.^[23] Others claim that the tradition was preserved by the Jews, who learned the method of enlarging a goose's liver during the Roman colonisation of Judea^[24] or earlier from Egyptians.^[25] The Jews carried this culinary knowledge as they migrated farther north and west to Europe.^[24]

The Judaic dietary law, Kashrut, forbade lard as a cooking medium, and butter, too, was proscribed as an alternative since kashrut also prohibited mixing meat and dairy products.^[9] Jewish cuisine used olive oil in the Mediterranean and sesame oil in Babylonia, but neither cooking medium was readily available in Western and Central Europe, so poultry fat (known in Yiddish as schmaltz), which could be abundantly produced by overfeeding geese, was substituted in their stead.^[24][26][27] The delicate taste of the goose's liver was soon appreciated; Hans Wilhelm Kirchhof of Kassel wrote in 1562 that the Jews raise fat geese and particularly love their livers. Some rabbis were concerned that eating forcibly overfed geese violated Jewish food restrictions. Some rabbis contended that it is not a forbidden food (treyf) as none of its limbs are damaged, and the geese did not feel any pain in their throats from the process.^[27] This matter remained a debated topic in Jewish dietary law until the Jewish taste for goose liver declined in the 19th century.^[24] Another kashrut matter, still a problem today, is that even properly slaughtered and inspected meat must be drained of blood before being considered fit to eat. Usually, salting achieves that; however, as the liver is regarded as "(almost) wholly blood", broiling is the only way of kashering. Properly broiling foie gras while preserving its delicate taste is difficult and, therefore, rarely practised. Even so, there are restaurants in Israel that offer grilled goose foie gras. Foie gras also resembles the Jewish food staple, chopped liver.^[27]

 

Bartolomeo Scappi

Appreciation of fattened goose liver spread to gastronomes outside the Jewish community, who could buy in the local Jewish ghetto of their cities. In 1570, Bartolomeo Scappi, chef de cuisine to Pope Pius V, published his cookbook Opera, wherein he writes that "the liver of [a] domestic goose raised by the Jews is of extreme size and weighs [between] two and three pounds".^[28] In 1581, Marx Rumpolt of Mainz, chef to several German nobles, published the massive cookbook Ein Neu Kochbuch, describing that the Jews of Bohemia produced livers weighing more than three pounds; he lists recipes for it—including one for goose liver mousse.^[28][29] János Keszei, chef to the court of Michael Apafi, the prince of Transylvania, included foie gras recipes in his 1680 cookbook A New Book About Cooking, instructing cooks to "envelop the goose liver in a calf's thin skin, bake it and prepare [a] green or [a] brown sauce to accompany it. I used goose liver fattened by Bohemian Jews; its weight was more than three pounds. You may also prepare a mush of it."

Production and sales

Country	Production (tons, 2005)	% of total (2005)	Production (tons, 2014)	% of total (2014)^[30]	Production (tons, 2020)
France	18,450^[31]	78.5%	19,608^[32]	74.3%	14,266^[33]
Hungary	1,920^[31]	8.2%	2,590^[32]	9.8%	2,147^[33]
Bulgaria	1,500^[31]	6.4%	2,600^[32]	9.8%	2,752^[33]
United States	340 (2003)^[34]	1.4%	250^[32]	0.9%	?
Canada	200 (2005)^[35]	0.9%	200^[32]	0.8%	?
China	150^[31]	0.6%	500^[32]	1.9%	?
Others	940	4.0%	648^[32]	2.5%	?
Total	23,500^[31]	100%	26,396^[32]	100%	22,409^[33]

In the 21st century, France is the largest producer and consumer of foie gras, though it is produced and consumed in several other countries worldwide, particularly in some other European nations, the United States, and China.^[4] Approximately 30,000 people work in the French foie gras industry, with 90% of them residing in the Périgord (Dordogne), Aquitaine in the southwest, and Alsace in the east.^[36] The European Union recognizes the foie gras produced according to traditional farming methods (label rouge) in southwestern France with a protected geographical indication.^{[citation needed]}

Hungary is the world's second-largest foie gras (libamáj) producer and the largest exporter (although Bulgaria sometimes had a higher production in recent years, see table above). France is the principal market for Hungarian foie gras – mainly exported raw. Approximately 30,000 Hungarian goose farmers are dependent on the foie gras industry.^[37] French food companies spice, process, and cook the foie gras so it may be sold as a French product in its domestic and export markets.^[38]

2005

In 2005, France produced 18,450 tonnes of foie gras (78.5% of the world's estimated total production of 23,500 tonnes), of which 96% was duck liver and 4% goose liver. Total French consumption of foie gras this year was 19,000 tonnes.^[31] In 2005, Hungary, the world's second-largest foie gras producer, exported 1,920 tonnes,^[37] and Bulgaria produced 1,500 tons of foie gras.^[31]

The demand for foie gras in the Far East is such that China has become a sizeable producer.^[39] Madagascar is a small but rapidly growing producer of high-quality foie gras.^[40]

2011

In 2011 in Bulgaria (which started production in 1960), five million mule ducks were raised for foie gras on 800 farms, making Bulgaria the second-largest European producer.^[41]

2012

In 2012, France produced approximately 19,000 tonnes of foie gras, representing 75% of the world's production in that year. This required the force-feeding of around 38 million ducks and geese.^[42] World production in 2015 is estimated as 27,000 tonnes.^[43]

2014–2015

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.^[44] The same year, France was producing 72% of world foie gras production, of which 97% was from ducks.^[45]

In 2014, France produced 19,608 tons of foie gras (74.3% of the world's estimated total production).^[32]

 

Foie gras served with hawthorn puree at a restaurant in Beijing

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.^[46][47]

2015–2016

In 2016, it was reported that France produces an estimated 75% of the world's foie gras and southwestern France produces approximately 70% of that total. In 2016, it could retail for upwards of $65 a pound.^[48]

In late 2015, there were several outbreaks of the highly contagious H5N1 bird flu in France, which escalated in 2016. This led to Algeria, China, Egypt, Japan, Morocco, South Korea, Thailand and Tunisia banning French poultry exports, including foie gras, and France to initiate increased bio-security protocols which cost an estimated 220 million euros. One of these measures was the halting of production in southwestern France from early April 2016 for an anticipated period of three months to reduce the spread of the virus. Exports of foie gras from France are expected to decrease from 4,560 tonnes in 2015 to 3,160 in 2016.^[48][49][50]

The largest producer in the United States is Hudson Valley Foie Gras in New York, which processes approximately 350,000 ducks annually.^[51]

Forms

 

An entire foie gras (ready for cooking in a terrine)

 

A Moulard duck foie gras torchon with pickled pear

In France, foie gras exists in different, legally defined presentations, ordered by expense:^[52]

• foie gras entier ("whole foie gras"), made of one or two whole liver lobes; either cuit ("cooked"), mi-cuit ("semi-cooked"), or frais ("fresh");
• foie gras, made of pieces of livers reassembled together;
• bloc de foie gras, a fully cooked, moulded block composed of 98% or more foie gras; if termed avec morceaux ("with pieces"), it must contain at least 50% foie gras pieces for goose, and 30% for duck.

Additionally, there is pâté de foie gras, mousse de foie gras (either must contain 50% or more foie gras), parfait de foie gras (must contain 75% or more foie gras), and other preparations (no legal obligation established).

Fully cooked preparations are generally sold in either glass containers or metal cans for long-term preservation. Whole, fresh foie gras is usually unavailable in France outside Christmas, except in some producers' markets in the producing regions. Frozen whole foie gras sometimes is sold in French supermarkets.

Whole foie gras is readily available from gourmet retailers in Canada, the United States, Hungary, Argentina and regions with a sizeable market for the product. In the US, raw foie gras is classified as Grade A, B or C. Grade A is typically the highest in fat and especially suited for low-temperature preparation because the veins are relatively few and the resulting terrine will be more aesthetically appealing because it displays little blood. Grade B is accepted for higher temperature preparation because the higher proportion of protein gives the liver more structure after being seared. Grade C livers are generally reserved for making sauces as well as other preparations where a higher proportion of blood-filled veins will not impair the appearance of the dish.^{[citation needed]}

Production methods

Species, breeds and sex used

Geese

Traditionally, foie gras was produced from special breeds of geese. However, by 2004, geese accounted for less than 10% of the total global foie gras production^[53] and by 2014 only 5% of total French production.^[54] Goose breeds used in modern foie gras production are primarily the grey Landes goose (Anser anser)^[54] and the Toulouse goose.^{[55][56][better source needed]}

In 2016, Hungary was producing 80% of the world's goose foie gras; however, production rates are likely to drop in 2017 due to outbreaks of bird flu.^[57]

Ducks

In 2014, ducks accounted for 95% of foie gras production.^[54] The breeds primarily used are the Muscovy duck (Cairina moschata)^[54] (also called the Barbary duck) and the hybrid cross of a male Muscovy duck and a female Pekin duck (Anas platyrhynchos domestica) called the Mulard duck.^[54] This hybrid is sterile and is, therefore, sometimes referred to as a "mule" duck. Mulards are estimated to account for about 35% of all foie gras consumed in the US.^[58] About 95% of duck foie gras production from France comes from force-fed Mulards and the remaining 5% from the Muscovy duck.^[59]

After hatching, the Mulard ducklings are sexed. Males put on more weight than females, so the females are slaughtered. A new method has been recently developed, allowing to identify the sex of the duck in the egg, based on its eye colour.^[60] This new method should replace the slaughter of females after hatching within a few years.^[61]

Physiological basis

 

Collectives cages are the main housing system since the ban of individual cages ("épinettes") in Europe

The basis of foie gras production is the ability that some waterfowl have to expand their esophagus and to gain weight, particularly in the liver,^{[citation needed]} in preparation for migration.^[62] 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 carrots per day. The increasing amount of feed given before force-feeding and during the force-feeding itself cause the expansion of the lower part of the esophagus.^[58] However, the primary birds used for foie gras, the Mulard and Muscovy duck, cannot fly well and therefore do not migrate.

Pre-feeding phase

The pre-force feeding phase consists of three stages.^[54]

• The first stage ("start-up") lasts from 1 to 28 days of age (0–4 weeks). During this stage, the young birds are housed in large, indoor groups (e.g. 2,100^[59]), usually on straw.
• The second stage ("growth") lasts from 28 to 63 days of age (4–9 weeks). The birds are moved outside to feed on grasses ad libitum. The birds are given additional feed, but access to this is limited by time. This stage aims to take advantage of the natural dilation capacity of the esophagus of some wildfowl.^[63]
• The third stage ("pre-fattening") lasts from 63 to 81 days of age^[64] (9–12 weeks). The birds are brought inside for gradually longer periods while introduced to a high-starch diet. This is a feeding transition where the food is distributed by meals, first in restricted amounts and time and, after that, greatly increased.

Feeding phase

The next production phase, which the French call gavage or finition d'engraissement, or "completion of fattening", involves forced daily ingestion of controlled amounts of feed for 10 to 12 days^[64] (10.5 on average^[65]) and 15 to 18 days with geese. During this phase, ducks are usually fed twice daily, while geese are usually fed three times daily.^[66] To facilitate the handling of ducks during gavage, these birds are housed throughout this phase in one of the following systems:^[67]

• Elevated collective cages indoor
• Elevated collective pens indoor
• Ground pens indoor

Individual cages ("épinettes" in French) have been banned in Europe.^[68]

Typical foie gras production involves force-feeding birds more food than they would eat in the wild, and much more than they would voluntarily eat domestically.^[69]

 

Modern gavage feeding process

In modern production, the bird is typically fed a controlled amount of feed, depending on the stage of the fattening process, the bird's weight, and the amount of feed the bird last ingested.^[70] At the start of production, a bird might be fed a dry weight of 250 grams (9 oz) of food per day and up to 1,000 grams (35 oz) (in dry weight) by the end of the process. The actual amount of food force-fed is much greater because water is added to the dry feed. For pellets, the typical composition is about 53% dry and 47% liquid (by weight). This is the equivalent of around 1,900 grams per day in total mass.^[71] For whole grain, the cooked weight is about 1.4 times the dry weight.^[72]

The feed is administered using a funnel fitted with a long metal or plastic tube (20–30 cm long), which forces the feed into the bird's esophagus. If an auger is used, the feeding takes about 45 to 60 seconds, however, modern systems usually use a tube fed by a pneumatic pump with an operation time of 2 to 3 seconds per duck. During feeding, efforts are made to avoid damaging the bird's esophagus, which could cause injury or death, although researchers have found evidence of inflammation of the walls of the proventriculus after the first session of force-feeding.^[73] There is also an indication of inflammation of the esophagus in the later stages of fattening.^[74] Several studies have also demonstrated that mortality rates can be significantly elevated during the gavage period.^[75][76][77]

The feed, usually corn boiled with fat (to facilitate ingestion), deposits large amounts of fat in the liver, thereby producing the buttery consistency sought by some gastronomes.

Ducks reared for foie gras are typically slaughtered at 100 days of age, although modern production methods with shortened pre-feeding and force feeding phases allow for an earlier slaughter, around 93 days.^[64][65] For geese, slaughter typically takes place at 112 days.^[30] The bird's liver is 6 to 10 times its ordinary size at this time.^[78] Storage of fat in the liver produces steatosis of the liver cells.

Alternative production

Ethical concerns have driven a recent interest in alternative production methods that produce fattened liver without gavage, and, as of June 2023^[update], at least 16 producers offered a meat-based foie gras alternative.^[79] The resulting products do not conform to the French legal standard for "foie gras", but can be labeled "fatty goose liver" inside France. Outside France, they may be marked as "ethical foie gras" or "humane foie gras", although these terms also describe gavage-based foie gras production tempered by concern with the animal's welfare (e.g., feeding through rubber hoses instead of steel pipes).

The humanity of alternative methods is controversial,^[80] in part because naive substitutes for gavage do not produce satisfactory results.^[81]

The current method, developed in Extremadura, Spain, involves timing the slaughter to coincide with the winter migration, when the livers naturally fatten. Prior to slaughter, the birds are allowed to eat freely, termed ad libitum.^[82][83] For this innovation, the producer, Patería de Sousa, won the Coup de Coeur award at the Salon International d'Alimentation 2006.^[83][84] Because gavage fattens goose livers to substantially larger than their natural size, de Sousa's technique is less efficient at producing a fixed mass of foie gras, and composes a small fraction of the market.^[85]

To achieve similar efficiency per mass to gavage, the British supermarket chain Waitrose sells a product which it calls faux gras (but see § Vegan alternatives), made from free-range British goose or duck liver blended with additional fat.^[86] Subsequently, researchers at the German Institute of Home Economics (DIL) [de] and the company GMT developed a process to apply additional fat to duck liver meat at high pressure. Even trained chefs struggle to distinguish the result from traditional foie gras.^[87]

More radical approaches are possible. A duck or goose with damaged ventromedial nucleus in the hypothalamus will feel less satiety after eating and therefore eat more. In lesioning experiments, this effect more than doubled the bird's ad libitum food consumption.^[88] Alternatively, human microbiome studies on obesity led French researchers at Aviwell develop a probiotic preparation that produces fatty livers in geese over six months without gavage.^[89]

Vegan alternatives

A Spanish company began selling a vegan alternative to foie gras called Fuah, in 2022. The product is made from cashew nuts, coconut oil and beetroot.^[90] The American product Faux Gras is a vegan, nut-based spread.^[91] In June 2023^[update], an animal welfare non-governmental organization found at least 14 producers of vegetarian or vegan alternatives to foie gras.^[79]

Preparations

 

Foie gras with shallots and figs

Generally, French preparations of foie gras are made over low heat, as fat melts faster from the traditional goose foie gras than the duck foie gras produced in most other parts of the world. American and other New World preparations, typically employing duck foie gras, have more recipes and dish preparations for serving foie gras hot rather than cool or cold.

In Hungary, goose foie gras is traditionally fried in goose fat, which is then poured over the foie gras and left to cool; it is also eaten warm, after being fried or roasted, with some chefs smoking the foie gras over a cherry wood fire.

In other parts of the world, foie gras is served in dishes such as foie gras sushi rolls, in various forms of pasta or alongside steak tartare or atop a steak as a garnish.

Cold preparations

Traditional low-heat cooking methods result in terrines, pâtés, parfaits, foams and mousses of foie gras, often flavored with truffle, mushrooms or brandy such as cognac or armagnac. These slow-cooked forms of foie gras are cooled and served at or below room temperature.

In a very traditional form of terrine, au torchon ("in a towel"), a whole lobe of foie is molded, wrapped in a towel and slow-cooked in a bain-marie. For added flavor (from the Maillard reaction), the liver may be seared briefly over a fire of grape vine clippings (sarments) before slow-cooking in a bain-marie; afterwards, it is pressed and served cold, in slices.

Raw foie gras is also cured in salt ("cru au sel") and served slightly chilled.^[92]

Strasbourg pie

A pastry containing fatty goose liver and other ingredients is known as the "Strasburg pie" since Strasbourg was a major producer of foie gras.^[93]

The Strasburg pie is mentioned in William Makepeace Thackeray's novel Vanity Fair as being popular with the diplomatic corps.^[94]

T.S. Eliot's poem "The Ad-Dressing of Cats", part of Old Possum's Book of Practical Cats and also the last song in its musical adaptation Cats, contains the line "And you might now and then supply/Some caviar or Strasbourg pie".^[95]

Capt. Aubrey and Dr. Maturin enjoy a "Strasburg pie" in Patrick O'Brian's 1988 Napoleonic sea adventure The Letter of Marque.^[96]

Hot preparations

Pâté de foie gras, canned

Nutritional value per 100 g (3.5 oz)
Energy	1,933 kJ (462 kcal)
Carbohydrates	4.67 g
Dietary fiber	0.0 g
Fat	43.84 g
Protein	11.40 g
Vitamins	Quantity %DV^†
Vitamin A equiv.	125% 1001 μg
Thiamine (B1)	8% 0.088 mg
Riboflavin (B2)	25% 0.299 mg
Niacin (B3)	17% 2.51 mg
Minerals	Quantity %DV^†
Sodium	46% 697 mg
Units μg = micrograms • mg = milligrams IU = International units
^†Percentages are roughly approximated using US recommendations for adults.

Given the increased internationalization of cuisines and food supply, foie gras is increasingly found in hot preparations in the United States, France, and elsewhere. Duck foie gras ("foie gras de canard") has a slightly lower fat content and is generally more suitable in texture to cooking at high temperatures than goose foie gras ("foie gras d'oie"), but chefs have been able to cook goose foie gras employing similar techniques developed for duck, albeit with more care.

Raw foie gras can be roasted, sauteed, pan-seared (poêlé), or (with care and attention) grilled. As foie gras has high-fat content, contact with heat needs to be brief and, therefore, at a high temperature, lest it burns or melts. Optimal structural integrity for searing requires the foie gras to be cut to a thickness between 15 and 25 mm (½ – 1 inch), resulting in a rare, uncooked center. Some chefs prefer not to devein the foie gras, as the veins can help preserve the integrity of the fatty liver. It is increasingly common to sear the foie gras on one side only, leaving the other side uncooked. Practitioners of molecular gastronomy such as Heston Blumenthal of The Fat Duck restaurant first flash-freeze foie gras in liquid nitrogen as part of the preparation process.^[97]

Hot foie gras requires minimal spices, typically black pepper, paprika (in Hungary) and salt. Chefs have used fleur de sel as a gourmet seasoning for hot foie gras to add an "important textural accent" with its crunch.^[98]

Consumption

Foie gras is regarded as a gourmet luxury dish.^[99] In France, it is mainly consumed on special occasions, such as Christmas or New Year's Eve réveillon dinners, though the recent increased availability of foie gras has made it a less exceptional dish.^[100] In some areas of France, foie gras is eaten year-round.

Duck foie gras is the slightly cheaper^[100] and, since a change of production methods in the 1950s to battery, by far the most common kind, particularly in the US. The taste of duck foie gras is often referred to as musky with a subtle bitterness. Goose foie gras is noted as less gamey and smoother, with a more delicate flavour.^[101]

Animal welfare

 

• v
• t
• e

World laws on foie gras production

Countries and regions that ban foie gras production

Main foie gras-producing countries and regions^[102]^[103]^[104]

 

Gavage feeding

Gavage-based foie gras production is controversial due to the animal welfare consequences of the force-feeding procedure, intensive housing and husbandry, an enlarged liver and the potential for being detrimental to human health. Some countries find foie gras to be "morally objectionable".^{[105][which?]} One EU committee report noted that up to 1998, there was only a small number of scientific studies on the welfare of birds used for foie gras production; however, the Committee found sufficient evidence to conclude that "force-feeding, as currently practised, is detrimental to the welfare of the birds".^[106] The industry repeatedly faces accusations of torture and cruelty.^[51]

Suitability of breeds and species

The production of foie gras occurs on the argument that migrating wildfowl seasonally eat such that their liver naturally enlarges. However, the bird used predominantly in foie gras production is a hybrid of a male Muscovy duck and a female Pekin duck. It has been noted that the Muscovy duck is non-migratory,^[107] and both the Pekin and the mulard hybrid cannot fly.^[108] Domestic ducks (including the Pekin) are derived from the mallard duck, which is sometimes migratory and sometimes not. Therefore, although the domestic goose might be adapted to store food before migration, it is less likely that the Mulard hybrid duck has the same potential.^[106]

Force-feeding procedure

Fear

Geese and ducks show avoidance behaviour (indicating aversion) toward the person who feeds them and the feeding procedure.^[106][109] Although an EU committee in 1998 reported seeing this aversion, they noted that at the time, there was no "conclusive" scientific evidence on the aversive nature of force-feeding.^[106] The AVMA (Animal Welfare Division) when considering foie gras production stated "The relatively new Mulard breed used in foie gras production seems to be more prone than its parent breeds to fear of people".^[109]

Injury

An EU committee in 1998^[106] reported that there was usually clear evidence of tissue damage in the esophagus of birds which had been gavage fed, although one 1972 study cited by the report observed no alteration of the esophageal tissue. More recent scientific studies have shown that the esophagus of birds can be injured or inflamed by gavage feeding.^{[58][109][110][111]}

Stress

After measuring a range of physiological parameters in male Mulard ducks, it was concluded in one study that the acute stress caused by force-feeding is similar at the beginning and end of the commercial production of foie gras.^[112] A similar study on Muscovy ducks found that gavage feeding was related to an increase in panting behaviour and serum corticosterone levels, indicating increased stress attributable to this feeding method.^[113]

Housing and husbandry

In France, at the end of 2015, individual cages were prohibited to improve animal welfare. They were to be replaced by cages housing 4 to 5 birds.^[59]

Behavioural restriction

During the force-feeding period, the birds are kept in individual cages with wire or plastic mesh floors or sometimes in small groups on slatted floors. Individual caging restricts movements and behaviours by preventing the birds from standing erect, turning around, or flapping their wings. Birds cannot carry out other natural waterfowl behaviours, such as bathing and swimming.^[58] Ducks and geese are social animals, and individual cages prevent such interactions.^[106] According to a 2023 European food safety authority (EFSA) report, even the collective cages and pens currently in use in Europe do not offer enough space to the birds for them to express their natural behaviour.^[67]

During the force-feeding period, when the birds are not being fed, they are sometimes kept in near-darkness; this prevents normal investigatory behaviour and results in poor welfare.^[106]

Injury

Lesions can occur on the sternum of the birds due to necrosis of the skin. This is observed more frequently in birds reared in cages rather than on the floor. The prevalence is higher in Mulard ducks (40–70%) compared to under 6% in Muscovy ducks. This is due to the larger pectoralis profundus major and minor muscles in Muscovy ducks compared to Mulards.^[106] The relatively new Mulard breed used in foie gras production seems more prone to developing lesions in the area of the sternum when kept in small cages and to bone breakage during transport and slaughter.^[109]

Where ducks are fattened in group pens, it has been suggested that the increased effort required to capture and restrain ducks in pens might cause them to experience more stress during force-feeding. Injuries and fatalities during transport and slaughter occur in all types of poultry production; fattened ducks are more susceptible to conditions such as heat stress.

Enlarged liver

Foie gras production results in the bird's liver being swollen. In some ducks, liver size changes seasonally, increasing by as much as 30% to 50%, with more pronounced changes in females. However, foie gras production enlarges the livers ten times (or 1,000%) their normal size.^[58][109] This impairs liver function due to the obstruction of blood flow and expands the abdomen, making it difficult for the birds to breathe.^[109] Death occurs if the force-feeding is continued.^[30][106]

Mortality rates

The mortality rate in force-fed birds varies from 2% to 4%, compared with approximately 0.2% in age-matched, non-force-fed drakes.^[58] Mortality rates do not differ between the force-feeding period and the previous rearing phase, with both being approximately 2.5%.^[59]

Controversy

Further information: Foie gras controversy

The controversial nature of foie gras production was identified in a paper that juxtaposed the views of "foie gras production as the apotheosis of murderous meat production, and those who consider it to be a co-production between humans and animals".^[114]

Animal rights and welfare advocates such as Animal Equality,^[115] PETA,^[116] Viva!,^[117] and the Humane Society of the United States,^[118] FOUR PAWS^[119] contend that foie gras production methods, and force-feeding in particular, constitute cruel treatment of animals.

An Ipsos MORI poll found that 63% of the UK population would like to see a complete ban on the sale of foie gras in the UK.^[120]

In 2011 and 2012, Animal Equality conducted investigations inside four foie gras farms in France and five in Spain, exposing the cruelty of force-feeding.^[115] The footage collected reveals ducks covered in blood with broken and torn beaks, birds kept in small metal cages with no room to turn around, and ducks and geese desperately struggling to avoid force-feeding.

In April–May 2013, an investigator from Mercy for Animals recorded an undercover video at Hudson Valley Foie Gras farm in New York state. The footage showed workers forcefully pushing tubes down ducks' throats. One worker said of the force-feeding process: "Sometimes the duck doesn't get up, and it dies. There have been times that 20 ducks were killed." Hudson Valley operations manager Marcus Henley replied that the farm's mortality statistics are not above average for the poultry industry.^[121] Because Hudson Valley provides foie gras to Amazon.com, Mercy for Animals began a campaign urging Amazon to stop selling foie gras, a move that has already been made by Costco, Safeway, and Target.^[122]

In November 2013, the Daily Mirror published a report based on the video they obtained depicting cruelty towards ducks in a farm owned by French firm Ernest Soulard, which is a supplier to celebrity chef Gordon Ramsay's restaurants. The restaurant chain suspended purchasing from the supplier following the exposé.^[123]

Animal research

The process of force-feeding can make animals sick by stressing the liver. If the stress is prolonged, excess protein may build up and clump together as amyloids, consumption of which has been found to induce amyloidosis in laboratory mice. It has been hypothesized this may be a route of transmission in humans too, and so be a risk for people with inflammatory complaints such as rheumatoid arthritis.^[124]

Legislation and bans

Further information: Foie gras controversy § Statutory and voluntary bans

Several countries and regions have laws against force-feeding or the sale or importation of foie gras; even where it is legal, some retailers have ceased selling it.^{[125][126][127]}

In Switzerland, foie gras production has been prohibited since 1978^[128] and force-feeding is explicitly banned since 2008.^[129]

In Europe, force-feeding is only legal in 5 of the 27 member states:^[130] France, Belgium,^[131] Hungary, Bulgaria, Spain. In 2017, foie gras production was banned in Brussels, a largely symbolic measure because of the small number of producers within the city limits.

In 2019, New York City instituted a foie gras ban but was struck down in 2022 by an order from the New York's Agriculture and Markets Department stating in the order that the ban was "unusual," "unreasonabl[e]," and "legislative overreach."^[132][133]

In November 2022, the Buckingham Palace household wrote to the PETA campaign group that foie gras was not bought or served in royal residences. "There will be no foie gras served in royal residences", a letter from Buckingham Palace to animal rights campaigners confirmed.^[134][135]

Force-feeding is also prohibited in Israel,^[136] Turkey^[137] and Australia.^[137] Foie gras import is prohibited in India.^[137] Foie gras production and sale is prohibited in California.^[138]

See also

•  Food portal

• Shen Zhu – the fattening of pigs in a manner similar to gavage
• List of delicacies
• List of duck dishes
• Ortolan bunting
• Specialty foods
• Nonalcoholic fatty liver disease, with homologous pathophysiologic aspects

Notes

1. French rural code Code rural – Article L654-27-1 17 July 2020 at the Wayback Machine: "On entend par foie gras, le foie d'un canard ou d'une oie spécialement engraissé par gavage." ("'Foie gras' is understood to mean the liver of a duck or a goose that has been especially fattened by gavage").
2. French rural code L654-27-1
3. . Archived from the original on 16 December 2017. Retrieved 10 April 2009.
4. "A Global Taste Test of Foie Gras and Truffles". NPR.org.
5. (McGee 2004, p. 167): "Foie gras is the "fat liver" of force-fed geese and ducks. It has been made and appreciated since Roman times and probably long before; the force-feeding of geese is clearly represented in Egyptian art from 2500 BC."
6. (Toussaint-Samat 1994, p. 425).
7. (Ginor 1999, p. 2).
8. . Archived from the original on 29 December 2006. Retrieved 29 December 2006.
9. (Alford 2001, p. 36).
10. (Ginor 1999, p. 3).
11. Sagar, Khan (12 February 2015). "About the history of foie gras". foiegrasgourmet.com. Foie Gras Gourmet. Retrieved 27 February 2017.
12. (Ginor 1999, p. 4).
13. (Giacosa 1994, p. 13).
14. (Langslow 2000, p. 153) "A second instance of the restriction of the sense of a Latin anatomical term to animals is iecur 'the liver' in Theodorus and Cassius. In both, the human liver is always hepar, while iecur is used of an animal (...)"
15. "Ficus, i" (...) Derivés: (...) ficatum n. (sc. iecur): d'abord terme de cuisine "foie garni de figues", cf. Hor., S. 2, 8, 88, ficis pastum iecur anseris albae, calque du gr. συκωτόν de même sens, puis, dans le langage populaire, simplement "foie" (...) et passé avec ce sens dans les langues romanes, où ficatum a remplacé iecur. A. Ernout, A. Meillet, Dictionnaire etymologique de la langue latine, Éd. Klincksieck, Paris 1979.
16. (Toussaint-Samat 1994, p. 426).
17. Pliny the Elder, The Natural History(eds. John Bostock, Henry Thomas Riley). For the original Latin text, see here [1] 5 January 2022 at the Wayback Machine. The Latin text (ed. Karl Friedrich Theodor Mayhoff) of Perseus Digital Library places the corresponding text in a wrong chapter. URL accessed 30 December 2006.
18. (Faas 2002, p. 19)
19. Malkiel, Yakov (1944). "The Etymology of Portuguese Iguaria". Language. 20 (3): 108–30. doi:10.2307/410151. JSTOR 410151.
20. (Walter 2006, p. 40): "(...) for example, why it is not the word JECUR (a Latin word taken from the Greek) which has come down to us with the meaning of 'liver', but the Romance word ficato, which has become the French foie. The word ficato is formed on the Latin word FICUS 'fig', and would appear to have nothing to do with the 'liver' other than the Greeks, followed by the Romans, fattened their geese with figs to obtain particularly fleshy and tasty livers. The FICATUM JECUR or 'fig-fattened goose liver', which was very much sought after, must have become such a common expression that it was shortened to FICATUM (just as the modern French say frites as an abbreviation of pommes de terre frites). To begin with, the word FICATUM probably designated only edible animal livers, with its meaning then being extended to include the human organ."
21. (Littré 1863, p. 137): "Feûte n'est pas mieux fait que foie; seulement, il conserve le t du Latin; car on sait que foie vient de ficatum (foie d'une oie nourrie de figues, et, de là, foie en général). Foie en français, feûte en wallon, fetge en provençal, fégato en italien, hígado en espagnol, fígado en portugais, témoignent que la bouche romane déplaça l'accent du mot Latin, et, au lieu de ficátum, qui est la prononciation régulière, dit, par anomalie, fícatum avec l'accent sur l'antépénultième."
22. Dizionario etimologico online: fégato 29 September 2007 at the Wayback Machine.
23. (Ginor 1999, p. 8).
24. (Ginor 1999, p. 9).
25. (Davidson 1999, p. 311): "The enlarged liver has been counted a delicacy since classical times when the force-feeding of the birds was practised in classical Rome. It is commonly said that the practice dates back even further, to ancient Egypt, and that knowledge of it was possibly acquired by the Jews during their period of 'bondage' there and transmitted by them to the classical civilizations."
26. (Alford 2001, p. 37).
27. Eileen Lavine (18 November 2013). "Foie Gras: The Indelicate Delicacy". Moment Magazine.
28. (Ginor 1999, p. 11).
29. (Toussaint-Samat 1994, p. 427).
30. (PDF). Viva!. 2014. Archived from the original (PDF) on 14 February 2015. Retrieved 14 February 2015.
31. . Xinhua online. 11 April 2006. Archived from the original on 2 June 2007. Retrieved 12 March 2007.
32. "Foie gras: world production by country 2014 | Statistic". Statista. Retrieved 2 May 2019.
33. "ITAVI : Note de conjoncture Palmipèdes gras - Mars 2021". www.itavi.asso.fr. Retrieved 3 July 2023.
34. "Foie Gras Food Debate on StarChefs".
35. (PDF). Ministry of Agriculture, Fisheries and Food (Quebec) (direction des études économiques et d'appui aux filières). Archived from the original (PDF) on 28 February 2008. Retrieved 28 February 2008.
36. Edworthy, Niall (23 March 2017). The Curious Bird Lover's Handbook. Transworld. ISBN 978-1-4735-4399-7.
37. "Food Ingredients & Food Science – Additives, Flavours, Starch". FoodNavigator.com.
38. Thorpe, Nick (12 January 2004). "Hungary foie gras farms under threat". BBC News. Retrieved 2 May 2010.
39. "Foie Gras". European Society of Dog and Animal Welfare. Retrieved 17 October 2018.
40. Rakotomalala, M. Élevage – La filière foie gras se porte bien 28 September 2013 at the Wayback Machine. Express de Madagascar. No. 5632. 15 May 2013.
41. Marinova‐Petkova, A.; Georgiev, G.; Petkov, T.; Darnell, D.; Franks, J.; Kayali, G.; McKenzie, P. (2016). "Influenza surveillance on 'foie gras' duck farms in Bulgaria, 2008–2012". Influenza and Other Respiratory Viruses. 10 (2): 98–108. doi:10.1111/irv.12368. PMC 4746559. PMID 26663739.
42. Willsher, K. (5 August 2012). "Foie gras: French farmers defend 'tradition' after ban in California". The Guardian. Retrieved 28 May 2015.
43. . 21 July 2015. Archived from the original on 5 November 2019. Retrieved 28 May 2015.
44. "The foie gras sector in a few figures". Euro Foie Gras. Retrieved 28 May 2015.
45. François, Y.; Marie-Etancelin, C.; Vignal, A.; Viala, D.; Davail, S.; Molette, C. (2014). "Mule duck 'foie gras' show different metabolic states according to their quality phenotypes by using a proteomic approach. Comparison of 2 statistical methods". Journal of Agricultural and Food Chemistry. 62 (29): 7140–7150. doi:10.1021/jf5006963. PMID 24976256.
46. Samuel, H. (2015). "First foie gras trial under way in France". The Telegraph. Archived from the original on 11 January 2022. Retrieved 28 May 2015.
47. Bekhechi, M. (2015). "Cruelty charges long overdue for foie gras farmers". The Huffington Post. Retrieved 28 May 2015.
48. Houck, B. (12 May 2016). "France places temporary ban on foie gras production". Eater. Retrieved 23 July 2016.
49. Samuel, H. (29 June 2016). "French foie gras faces soaring prices at Christmas in the wake of bird flu scare". The Telegraph. Archived from the original on 11 January 2022. Retrieved 23 July 2016.
50. Rousseau, O. (10 December 2015). "Fear in France as bird flu spreads". GlobalMeat news.com. Retrieved 23 July 2016.
51. DeSoucey, M. (2016). Contested Tastes: Foie Gras and the Politics of Food. Princeton University Press.
52. Decree 93-999 August 9, 1993 11 October 2007 at the Wayback Machine defining legal categories and terms for foie gras in France
53. Guémené D.; Guy, G. (2004). "The past, present and future of force-feeding and 'foie gras' production". World's Poultry Science Journal. 60 (2): 210–222. doi:10.1079/wps200414.
54. "Foie gras production". CIFOG. 2014. Retrieved 27 May 2015.
55. Ravo, Nick (24 September 1998). "A Cornucopia of Native Foie Gras; Partners' Efforts Produce Menu Delicacy in Abundance". The New York Times. Retrieved 2 May 2010.
56. Toulouse Goose 11 November 2007 at the Wayback Machine Pyrenees Biological Academy (in French)
57. Than, K. (25 January 2017). "Hungary's foie gras industry down with flu as millions of birds die". Reuters. Retrieved 26 January 2017.
58. Skippon, W. (2013). "The animal health and welfare consequences of foie gras production". Canadian Veterinary Journal. 54 (4): 403–404. PMC 3595949. PMID 24082171.
59. Marie-Etancelin, C.; Chapuis, H.; Brun, J.M.; Larzul, C.; Mialon-Richard, M.M.; Rouvier, R. "Genetics and selection of ducks in France". ResearchGate. Retrieved 25 May 2015.
60. "Les services Grimaud Frères". Grimaud Freres (in French). Retrieved 3 July 2023.
61. "Foie gras: va-t-on interdire le broyage des canetons femelles?". La Voix du Nord (in French). 8 October 2021. Retrieved 3 July 2023.
62. "EU Report" (PDF). (277 KiB), section 4
63. "EU Report" (PDF). (277 KiB) EU Scientific Report, p19
64. Xicluna, Pascal (5 June 2019). "Le bien-être et la protection des canards gras". agriculture.gouv.fr.
65. "ITAVI : Peut-on obtenir du foie gras avec un seul repas par jour?". www.itavi.asso.fr. Retrieved 4 July 2023.
66. "Gavage d'Oies & Canards: une Méthode d'Engraissement Maîtrisée". elevage-gavage.fr. Retrieved 4 July 2023.
67. EFSA Panel on Animal Health and Animal Welfare (AHAW Panel); Nielsen, Søren Saxmose; Alvarez, Julio; Bicout, Dominique Joseph; Calistri, Paolo; Canali, Elisabetta; Drewe, Julian Ashley; Garin‐Bastuji, Bruno; Gonzales Rojas, Jose Luis; Schmidt, Christian Gortázar; Herskin, Mette; Michel, Virginie; Miranda Chueca, Miguel Ángel; Padalino, Barbara; Roberts, Helen Clare (May 2023). "Welfare of ducks, geese and quail on farm". EFSA Journal. 21 (5): e07992. doi:10.2903/j.efsa.2023.7992. PMC 10186070. PMID 37200855.
68. "Recommandation concernant les canards domestiques (Anas platyrhynchos)". Council of Europe. Retrieved 4 July 2023.
69. "Welfare Aspects of the Production of Foie Gras in Ducks and Geese 5 May 2021 at the Wayback Machine", p. 29
70. "tours.inra.fr". Retrieved 24 September 2017.
71. Guémené, D.; Guy, G.; Noirault, J.; Garreau-Mills, M.; Gouraud, P.; Faure, J. M. (2001). "Force-feeding procedure and physiological indicators of stress in male mule ducks". British Poultry Science. 42 (5): 650–657. doi:10.1080/00071660120088489. PMID 11811918. S2CID 9966682.
72. "Précis sur le gavage" (PDF). FAF SAS.
73. Serviere, J, Bernadet, MD and Guy, G. 2003. "Is nociception a sensory component associated with force-feeding? Neurophysiological approach in the mule duck". 2nd World Waterfowl Conference. Alexandria, Egypt
74. . Archived from the original on 25 April 2009. Retrieved 24 September 2017.
75. "Animal welfare - Food Safety - European Commission" (PDF).
76. Koehl, PF and Chinzi, D. 1996. "Les resultats technico-economiques des ateliers de palmidpedes a foie gras de 1987 a 1994". 2eme journees de la recherche sur les palmipedes a foie gras. 75.
77. Chinzi, D and Koehl, PF. 1998. "Caracteristiques desateliers d'elevage et de gavage de canards et mulards. Relations avec les performances et techniques et economiques". Proceedings des 3eme journees de la recherche sur les palmipedes a foie gras. 107.
78. "EU Report" (PDF). (277 KiB), p60
79. "Liste des alternatives au fois gras" [List of fois gras alternatives] (PDF). Quattre Pattes en Suisse (in Swiss French). Zurich. June 2023. (PDF) from the original on 28 August 2023. Retrieved 28 August 2023.
80. Glass, Juliet (25 April 2007). "Foie Gras Makers Struggle to Please Critics and Chefs". The New York Times.
81. Scientific Committee on Animal Health and Animal Welfare (1998). "Alternative Methods of Production". Welfare Aspects of the Production of Foie Gras in Ducks and Geese (Report). UN Food and Agriculture Organization. p. 57.
82. Keeley, Graham (2 January 2007). . The Times. London: Times Newspapers. Archived from the original on 11 June 2011.
83. • Barber, Dan (18 January 2015). "The farmer who makes 'ethical' foie gras". The Guardian. Excerpted from The Third Plate, Little, Brown & Co.
    • Barber, Dan (November 2008). (Speech). TED. Archived from the original on 22 February 2014. Retrieved 14 January 2014.
84. [The International Food Exposition in Paris, SIAL 2006, recognizes the Extremadura company "La Patería de Sousa"]. Economia. Extremadura Press (in Spanish). Badajoz, Spain. 16 October 2006. Archived from the original on 28 November 2007. Retrieved 16 January 2014. La entidad ha recibido el Premio 'Coups de Coeur', en la categoría de Foie Gras, tras presentar a concurso su especialidad, única en el mundo, Foie Gras de Ganso Ibérico de alimentación ecológica y no forzada. [The company has been awarded the "Coups de Coeur" award in the Foie Gras category after entering into the competition its specialty, unique in the world, of Foie Gras from Iberian geese that eat organic food and are not force-fed.]
85. "Can foie gras ever be ethical?". The Guardian. 14 January 2015.
86. Morris, Sophie (13 January 2012). "Is it ever OK to eat foie gras?". The Independent. Retrieved 28 December 2020.
87. van Dinther, Mac (20 December 2018). "Nagemaakte foie gras smelt net zo goed op de tong" [Counterfeit foie gras melts in the mouth equally well]. Nieuws: Foie Gras. De Volkskrant (in Dutch). DPG Media B.V. from the original on 21 September 2019. Retrieved 21 September 2019.
88. Felix, Bernadette; Auffray, P.; Marcilloux, J. C.; Royer, L. (1980). "Effect of induced hypothalamic hyperphagia and forced-feeding on organ weight and tissular development in Landes geese". Reproduction, Nutrition, Development. 20 (3A): 709–17. doi:10.1051/rnd:19800413. PMID 6961479.
89. Campbell, Lindsay (18 November 2019). "This French startup wants to be the future of foie gras". Modern Farmer. Retrieved 4 December 2019.
90. Kassam, Ashifa (2 January 2023). "'Fuah!' sure: the vegan foie gras selling out across Spain". the Guardian. Retrieved 3 January 2023.
91. Faux Gras™ « the Regal Vegan
92. Au Pied de Cochon. Menu. Montreal. 15 June. 2006.
93. The New Encyclopædia, ed. Daniel Coit Gilman, Harry Thurston Peck and Frank Moore. (New York: Dodd, Mead & Company, 1903): Vol. XIII, 778.
94. William Makepeace Thackeray, Vanity Fair, Ch. 9.
95. Webber, Andrew Lloyd (30 June 1981). Cats: the songs from the musical. Faber Music. p. 109. ISBN 978-0881882001.
96. O'Brian, Patrick (5 December 2011). The Letter of Marque (Vol. Book 12) (Aubrey/Maturin Novels). W. W. Norton & Company. ISBN 978-0-393-06365-3.
97. Schwartzkoff, Louise (2 February 2010). "Books – The Fat Duck Cookbook by Heston Blumenthal". The Sydney Morning Herald (Book review).
98. Nation's Restaurant News, 2004.
99. Serventi 1993, cover text.
100. "The goose is getting fat Politically incorrect it may be, but foie gras is storming British menus. Anwer Bati reports". The Daily Telegraph. London. 1 November 2003. Archived from the original on 11 January 2022. Retrieved 2 May 2010.
101. ... goose liver is more delicate and less gamey tasting that its duck equivalent France: World Food By Stephen Fallon, Michael Rothschild ISBN 1-86450-021-2, ISBN 978-1-86450-021-9 page 49
102. (PDF). Archived from the original (PDF) on 21 September 2013. Retrieved 11 December 2013.{{cite web}}: CS1 maint: archived copy as title (link)
103. . Archived from the original on 27 June 2008. Retrieved 27 June 2008.{{cite web}}: CS1 maint: archived copy as title (link)
104. "Nace el Parti Animaliste en Francia". Partido Animalista – PACMA.
105. DeSoucey, M. (2010). "Gastronationalism food traditions and authenticity politics in the European Union". American Sociological Review. 75 (3): 432–455. doi:10.1177/0003122410372226. S2CID 29005152.
106. "Report of the EU Scientific Committee on Animal Health and Animal Welfare on Welfare Aspects of the Production of Foie Gras in Ducks and Geese" (PDF). (277 KB)
107. Hoffmann, E. (1992). "A natural history of Cairina moschata, the wild Muscovy duck". 9th International Symposium of Waterfowl: 217–219.
108. Hoffmann, E. (1992). "Hybrid progeny from Muscovy and domestic ducks". 9th International Symposium of Waterfowl: 64–66.
109. "Welfare Implications of Foie Gras Production". American Veterinary Medical Association. 2014. Retrieved 14 February 2015.
110. Kozák, J. (2011). "Foie gras production: pros and cons in the light of animal protection". Journal of Animal Welfare, Ethology and Housing Systems. 7 (3): 200–209.
111. Servière, J.; Carriere, M.; Duvaux-Ponter, C.; Guy, G.; Roussel, S. (2011). "Neurogenic inflammation in the upper digestive tract of the mule duck: effect of a chemical algogen and force-feeding" (PDF). British Poultry Science. 52 (6): 792–799. doi:10.1080/00071668.2011.640660. PMID 22221246. S2CID 41132302.
112. Flamenta, A.; Delleura, V.; Poulipoulisa, A.; Marliera, D. (2012). "Corticosterone, cortisol, triglycerides, aspartate aminotransferase and uric acid plasma concentrations during foie gras production in male mule ducks (Anas platyrhynchos × Cairina moschata)". British Poultry Science. 53 (4): 408–413. doi:10.1080/00071668.2012.711468. PMID 23130574. S2CID 22716210.
113. Mohammed, A.A.A.; Abdel-Rahman, M.; Darwish, M.H.A. (2014). "Force feeding as a stress factor on Muscovy ducks". Journal of Advanced Veterinary Research. 4 (4).
114. Heath, D.; Meneley, A (2010). "The naturecultures of foie gras: techniques of the body and a contested ethics of care". Food, Culture and Society. 13 (3): 421–452. doi:10.2752/175174410x12699432701024. S2CID 152347835.
115. "Ban Foie Gras". Animal Equality UK. Retrieved 3 May 2022.
116. "How to Go Vegan & Why in 3 Simple Steps | PETA.org". How To Go Vegan.
117. . Archived from the original on 19 January 2013. Retrieved 24 September 2017.
118. . Archived from the original on 22 June 2007. Retrieved 24 September 2017.
119. "Foie Gras". FOUR PAWS International - Animal Welfare Organisation. Retrieved 7 July 2023.
120. Milne, E. (2012). "Sixty-three per cent of the British public wants foie gras banned". The Huffington Post. Retrieved 28 May 2015.
121. Tepper, Rachel (12 June 2013). "Undercover Foie Gras Footage Shot at Hudson Valley Foie Gras Alleges Cruel Practices (VIDEO)". Huffington Post. Retrieved 3 April 2014.
122. Zara, Christopher (12 June 2013). "Amazon Urged To Ban Foie Gras: Animal-Rights Group Calls Retailer A Lame Duck Over Controversial Food". International Business Times. Retrieved 3 April 2014.
123. Andy Lines (8 November 2013). "VIDEO: Cruelty of chef Gordon Ramsay's foie gras supplier exposed in shocking footage". mirror.
124. Westermark, Gunilla T.; Westermark, Per (2010). "Prion-like aggregates: Infectious agents in human disease". Trends in Molecular Medicine (Review). 16 (11): 501–7. doi:10.1016/j.molmed.2010.08.004. PMID 20870462. AA amyloidosis can theoretically be transmitted to humans by the same route; thus, such food might constitute a hazard for individuals with chronic inflammatory disorders such as RA.
125. "Amazon bans foie gras". The Bugle. November 2013. Retrieved 13 March 2015.
126. Doward, Jamie; Owen, Jemima (18 December 2011). "Fortnum and Mason faces celebrity battle over its sale of 'cruel' foie gras". The Guardian. Retrieved 14 March 2015.
127. "Harvey Nichols bans 'cruel' pate". BBC. 3 August 2007. Retrieved 12 March 2015.
128. OSAV, Office fédéral de la sécurité alimentaire et des affaires vétérinaires. "Protection des animaux". www.blv.admin.ch (in French). Retrieved 7 July 2023.
129. "Fedlex". www.fedlex.admin.ch. Retrieved 7 July 2023.
130. Standing Committee of the European Convention for the protection of animals kept for farming purposes. Recommendations concerning domestic ducks (anas platyrhynchos). 1999 [accessed 2023 Mar 22]. https://search.coe.int/cm/Pages/result_details.aspx?ObjectID=090000168052fac6
131. . Feedblix. 20 March 2017. Archived from the original on 21 March 2017. Retrieved 26 March 2017.
132. "Foie Gras Order" (PDF). 14 December 2022.
133. "New York City's Foie Gras Ban Once Again Deemed Illegal by New York State". 24 December 2022.
134. "Foie gras banned in all royal residences, letter from King Charles's household confirms". Telegraph. November 2022. Retrieved 13 March 2015.
135. "King Charles: Foie gras banned at royal residences". BBC. 18 November 2022. Retrieved 18 November 2022.
136. "Verdict of the Supreme Court of Israel - Foie Gras. 2003" (PDF).
137. L214 (12 November 2019). "Le gavage interdit à travers le monde". L214 (in French). Retrieved 11 October 2023.{{cite web}}: CS1 maint: numeric names: authors list (link)
138. "En Californie, la fin de la bataille du foie gras". La Croix (in French). 8 January 2019. ISSN 0242-6056. Retrieved 11 October 2023.

References

Books

• Larousse Gastronomique, by Prosper Montagne (Ed.), Clarkson Potter, 2001. ISBN 0-609-60971-8.
• Alford, Katherine (2001). Caviar, Truffles, and Foie Gras. Chronicle Books. ISBN 978-0-8118-2791-1.
• Bett, Henry (2003). Wanderings Among Words. Kessinger Publishing. ISBN 978-0-7661-7792-5.
• Davidson, Alan (1999). The Oxford Companion to Food. Oxford University Press. ISBN 978-0-19-211579-9.
• Faas, Patrick (2002). Around the Table of the Romans: Food and Feasting in Ancient Rome. Palgrave Macmillan. ISBN 978-0-312-23958-9.
• Giacosa, Ilaria Gozzini (1994). A Taste of Ancient Rome. University of Chicago Press. ISBN 978-0-226-29032-4.
• Ginor, Michael A. (1999). Foie Gras: A Passion. John Wiley & Sons. ISBN 978-0-471-29318-7.
• Langslow, David R. (2000). Medical Latin in the Roman Empire. Oxford University Press. ISBN 978-0-19-815279-8.
• Littré, Maximilien Paul Emile (1863). Histoire de la langue française: Études sur les origines, l'étymologie, la grammaire (in French). Didier.
• McGee, Harold (2004). On Food and Cooking: The Science and Lore of the Kitchen. Scribner. ISBN 978-0-684-80001-1.
• Serventi, Silvano (1993). La grande histoire du foie gras. Flammarion. ISBN 978-2-08-200542-5.
• Toussaint-Samat, Maguelonne (1994). History of Food. Blackwell Publishing Professional. ISBN 978-0-631-19497-2.
• Walter, Henriette (2006). French Inside Out: The French Language Past and Present. Routledge. ISBN 978-0-415-07670-8.

Articles

• Fabricant, Florence (2004). "Peppering with salt: chefs find favor with gourmet versions of common seasoning". Nation's Restaurant News. 38 (9): 36.

External links

 

Look up foie gras in Wiktionary, the free dictionary.

• Video of foie gras production.

Scientific studies

• Report of the EU Scientific "Committee on Animal Health and Animal Welfare on Welfare Aspects of the Production of Foie Gras in Ducks and Geese" (PDF). (277 KiB)

Alternatives

• Foie Gras without force-feeding
• Faux Gras – "Foie Gras Without The Cruelty"
• Foie Gras history and using microbiome manipulation without forced feeding 5 December 2019 at the Wayback Machine
• Chef Dan Barber tells the story of a small farm in Spain that has found a humane way to produce foie gras
• TIME, 12 August 2009