Lamb and mutton
Lamb, hogget, and mutton, generically sheep meat, are the meat of domestic sheep, Ovis aries. A sheep in its first year is a lamb and its meat is also lamb. The meat from sheep in their second year are hogget. Older sheep meat is mutton. Generally, "hogget" and "sheep meat" are not used by consumers outside New Zealand, South Africa and Australia with the exception of the Navajo people in the American Southwest, who consume mutton as a staple part of their diet. Historically, Navajo sheep ranching has been regulated by the Federal Government due to habitat destruction caused by sheep overgrazing.
Lamb is the most expensive of the three types and in recent decades sheep meat is increasingly only retailed as "lamb", sometimes stretching the accepted distinctions given above. The stronger-tasting mutton is now hard to find in many areas, despite the efforts of the Mutton Renaissance Campaign in the UK. In Australia, the term prime lamb is often used to refer to lambs raised for meat. Other languages, for example French, Spanish, Italian and Arabic, make similar or even more detailed, distinctions among sheep meats by age and sometimes by sex and diet, though these languages do not always use different words to refer to the animal and his or her meat — for example, lechazo in Spanish refers to meat from milk-fed (unweaned) lambs.
Classifications and nomenclature
The definitions for lamb, hogget and mutton vary considerably between countries. Younger lambs are smaller and more tender. Mutton is meat from a sheep over two years old, and has less tender flesh. In general, the darker the colour, the older the animal.
- Lamb — a young sheep under 12 months of age who does not have any permanent incisor teeth in wear. (From July 1, 2019, the Australian definition is "an ovine animal that: (a) is under 12 months of age; or (b) does not have any permanent incisor teeth in wear." The New Zealand definition also allows "0 incisors in wear".)
- Hogget — A term for a sheep of either sex having no more than two permanent incisors in wear, or its meat. Still common in farming usage, it is now rare as a domestic or retail term for the meat. Much of the "lamb" sold in the UK is "hogget" to a farmer in Australia or New Zealand.
- Mutton — the meat of a female (ewe) or castrated male (wether) sheep having more than two permanent incisors in wear.
In the early 1900s, mutton was widely consumed in the United States, but mutton consumption has declined since World War II. As of 2010, most sheep meat in the United States comes from animals in between 12 and 14 months old, and is called "lamb"; the term "hogget" is not used. Federal statutes and regulations dealing with food labeling in the United States permit all sheep products to be marketed as "lamb." USDA grades for lamb are only partly a function of the animal's age. Animals up to 20 months old may meet the quality of the "USDA prime" grade depending on other factors, while "USDA choice" lamb can be of any age. "Spring lamb" is defined by the USDA as having been slaughtered between March and October.
The term "mutton" is applied to goat meat in most of these countries, and the goat population has been rising. For example, mutton-curry is always made from goat meat. It is estimated that over one-third of the goat population is slaughtered every year and sold as mutton. The husbanded sheep population in India and the Indian subcontinent has been in decline for over 40 years and has survived at marginal levels in mountainous regions, based on wild-sheep breeds, and mainly for wool production.
- Milk-fed lamb — meat from an unweaned lamb, typically 4–6 weeks old and weighing 5.5–8 kg; this is almost unavailable in countries such as the United States and the United Kingdom. The flavour and texture of milk-fed lamb when grilled (such as the tiny lamb chops known as chuletillas in Spain) or roasted (lechazo asado or cordero lechal asado) is generally thought to be finer than that of older lamb, and fetches higher prices. The areas in northern Spain where this can be found include Asturias, Cantabria, Castile and León, and La Rioja. Milk-fed lambs are especially prized for Easter in Greece, when they are roasted on a spit.
- Young lamb — a milk-fed lamb between six and eight weeks old
- Spring lamb — a milk-fed lamb, usually three to five months old, born in late winter or early spring and sold usually before 1 July (in the northern hemisphere).
- Sucker lambs — a term used in Australia — includes young milk-fed lambs, as well as slightly older lambs up to about seven months of age which are also still dependent on their mothers for milk. Carcases from these lambs usually weigh between 14 and 30 kg. Older weaned lambs which have not yet matured to become mutton are known as old-season lambs.
- Yearling lamb — a young sheep between 12 and 24 months old, so another term for a hogget.
- Saltbush mutton – a term used in Australia for the meat of mature Merinos which have been allowed to graze on atriplex plants
- Salt marsh lamb (also known as 'saltmarsh lamb' or by its French name, agneau de pré-salé) is the meat of sheep which graze on salt marsh in coastal estuaries that are washed by the tides and support a range of salt-tolerant grasses and herbs, such as samphire, sparta grass, sorrel and sea lavender. Depending on where the salt marsh is located, the nature of the plants may be subtly different. Salt marsh lamb has long been appreciated in France and is growing in popularity in the United Kingdom. Places where salt marsh lamb are reared in the UK include Harlech and the Gower Peninsula in Wales, the Somerset Levels, Morecambe Bay and the Solway Firth.
- Saltgrass lamb – a type of lamb exclusive to Flinders Island (Tasmania). The pastures on the island have a relatively high salt content, leading to a flavor and texture similar to saltmarsh lamb.
Butchery and cookery
- Lechazo asado (roast lamb), shown above, is a typical dish from the province of Valladolid and other Castilian provinces in Spain.
- Chuletillas of milk-fed lamb in Asturias.
- Lamb shanks of a young lamb.
- Mutton rogan josh from India.
- Lamb chuanr (Uyghur grilled lamb kebabs).
- Lamb shanks cooked on an open fire in Aroab, Namibia.
The meat of a lamb is taken from the animal between one month and one year old, with a carcass weight of between 5.5 and 30 kg (12 and 66 lb). This meat generally is more tender than that from older sheep and appears more often on tables in some Western countries. Hogget and mutton have a stronger flavour than lamb because they contain a higher concentration of species-characteristic fatty acids and are preferred by some. Mutton and hogget also tend to be tougher than lamb (because of connective tissue maturation) and are therefore better suited to casserole-style cooking, as in Lancashire hotpot, for example.
Lamb is often sorted into three kinds of meat: forequarter, loin, and hindquarter. The forequarter includes the neck, shoulder, front legs, and the ribs up to the shoulder blade. The hindquarter includes the rear legs and hip. The loin includes the ribs between the two.
Lamb chops are cut from the rib, loin, and shoulder areas. The rib chops include a rib bone; the loin chops include only a chine bone. Shoulder chops are usually considered inferior to loin chops; both kinds of chops are usually grilled. Breast of lamb (baby chops) can be cooked in an oven.
Forequarter meat of sheep, as of other mammals, includes more connective tissue than some other cuts, and, if not from a young lamb, is best cooked slowly using either a moist method, such as braising or stewing, or by slow roasting or American barbecuing. It is, in some countries, sold already chopped or diced.
Lamb shank definitions vary, but generally include:
- a cut from the arm of shoulder, containing leg bone and part of round shoulder bone, and covered by a thin layer of fat and fell (a thin, paper-like covering).
- a cut from the upper part of the leg.
Thin strips of fatty mutton can be cut into a substitute for bacon called macon.
UK, Canada, and other Commonwealth countries
- Scrag end (of neck)
- Middle neck
- Best End (of neck)
- Chump (and chump chops)
- Leg (gigot in Scotland)
US and Ireland
- Square cut shoulder – shoulder roast, shoulder chops and arm chops
- Rack – rib chops and riblets, rib roast
- Loin – loin chops or roast
- Leg – sirloin chops, leg roast (leg of lamb)
- Shanks (fore or hind)
Production and consumption figures
Sheep meat consumption
According to the OECD-FAO Agricultural Outlook for 2016, the top consumers of sheep meat in 2015 were as follows: EU countries are not individually surveyed in this list. Among EU nations, Greece is the per capita leader in consumption at 12.3 kg, while the UK's annual per capita lamb consumption is 4.7 kg. Outside of the OECD, the largest per capita consumer overall is Mongolia, with 45.1 kg.
- Serbia – 10.5 kilograms (23 lb) per capita
- Kazakhstan – 8.1 kilograms (18 lb)
- Australia – 7.4 kilograms (16 lb)
- Algeria – 7.1 kilograms (16 lb)
- Uruguay – 5.7 kilograms (13 lb)
- Saudi Arabia – 5.5 kilograms (12 lb)
- New Zealand – 4.4 kilograms (9.7 lb)
- Turkey – 4.1 kilograms (9.0 lb)
- Iran – 3.2 kilograms (7.1 lb)
- South Africa – 3.1 kilograms (6.8 lb)
Sheep meat production
The table below gives a sample of producing nations, but many other significant producers in the 50–120 KT range are not given.
Meat from sheep features prominently in the cuisines of several Mediterranean cultures including Greece, Turkey, North Africa, Jordan, and the Middle East, as well as in the cuisines of Pakistan and Afghanistan. In Greece for example, it is an integral component of many meals and of religious feasts such as Easter (see avgolemono, magiritsa). It is also very popular in the Basque culture, both in the Basque country of Europe and in the shepherding areas of the Western United States. In the United States, the Navajo have incorporated mutton and lamb into their traditional cuisine since the introduction of sheep by Spanish explorers and settlers in the 17th century, replacing wild turkey and venison and creating a pastoral culture. In Northern Europe, mutton and lamb feature in many traditional dishes, including those of Iceland, Norway and of the United Kingdom, particularly in the western and northern uplands, Scotland and Wales. Mutton used to be an important part of Hungarian cuisine due to strong pastoral traditions but began to be increasingly looked down on with the spread of urbanisation.
Mutton is also popular in Australia. Lamb and mutton are very popular in Central Asia and in certain parts of China, where other red meats may be eschewed for religious or economic reasons. Barbecued mutton is also a specialty in some areas of the United States (chiefly Owensboro, Kentucky) and Canada. However, meat from sheep is generally consumed far less in the US than in many European, Central American and Asian cuisines; for example, average per-capita consumption of lamb in the United States is only 400 grams (14 oz) per year.
In Australia, the leg of lamb roast is considered to be the national dish. Commonly served on a Sunday or any other special occasion, it can be done in a kettle BBQ or a conventional oven. Typical preparation involves covering the leg of lamb with butter, pushing rosemary sprigs into incisions cut in the leg, and sprinkling rosemary leaves on top. The lamb is then roasted for two hours at 180 °C (350 °F) and typically served with carrots and potato (also roasted), green vegetables and gravy.
In Indonesia, lamb is popularly served as lamb satay and lamb curry. Both dishes are cooked with various spices from the islands, and served with either rice or lontong. A version of lamb and bamboo shoot curry is the specialty of Minang cuisine, although similar dish could also be found in Thai cuisine.
In Mexico, lamb is the meat of choice for the popular barbacoa dish, in which the lamb is roasted or steamed wrapped in maguey leaves underground.
In Medieval India, the armies, unable to cook elaborate meals, would prepare a one-pot dish where they cooked rice with mutton. This dish led to the famous Biryani.
In Japan, although lamb is not traditionally consumed in most of the country, on the Northern island of Hokkaido and North-eastern Tohoku regions, a hot pot dish called Jingisukan (i.e. "Genghis Khan") is popular. In that dish, thin-sliced lamb is cooked over a convex skillet alongside various vegetables and mushrooms in front of the diners, then dipped in soy-sauce based dipping sauces and eaten. It was so named because lamb is popular in Mongolia (see "Sheep meat consumption" above).
Organ meats / Offal
Lamb's liver, known as lamb's fry in New Zealand and Australia, is eaten in many countries. It is the most common form of offal eaten in the UK, traditionally used in the family favourite (and pub grub staple) of liver with onions and/or bacon and mashed potatoes. It is a major ingredient, along with the lungs and heart (the pluck), in the traditional Scottish dish of haggis.
Lamb testicles or lamb fries are a delicacy in many parts of the world.
Lamb kidneys are found in many cuisines across Europe and the Middle East, often split into two halves and grilled (on kebabs in the Middle East), or sautéed in a sauce. They are generally the most highly regarded of all kidneys.
- Lechazo de Castilla y León – milk-fed lamb meat from Spain
- List of lamb dishes
- Mutton curry
- Mutton flaps
- Goat meat
- Sheep's trotters
- Smalahove – a Western Norwegian dish of sheep head
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