Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together. Domesticated animals are known as breeds, normally bred by a professional breeder, while domesticated plants are known as varieties, cultigens, cultivars, or breeds. Two purebred animals of different breeds produce a crossbreed, and crossbred plants are called hybrids. Flowers, vegetables and fruit-trees may be bred by amateurs and commercial or non-commercial professionals: major crops are usually the provenance of the professionals.
Animal husbandry is the branch of agriculture concerned with animals that are raised for meat, fibre, milk, or other products. It includes day-to-day care, selective breeding, and the raising of livestock. Husbandry has a long history, starting with the Neolithic Revolution when animals were first domesticated, from around 13,000 BC onwards, predating farming of the first crops. By the time of early civilisations such as ancient Egypt, cattle, sheep, goats, and pigs were being raised on farms.
The Longhorn or British Longhorn is a British breed of beef cattle characterised by long curving horns. It originated in northern England, in the counties of Lancashire, Westmorland and Yorkshire, and later spread to the English Midlands and to Ireland. It was originally a slow heavy draught animal; cows gave a little milk, although high in fat. In the eighteenth century Robert Bakewell applied his methods of selective breeding to these cattle, which for a short time became the predominant British breed. Both the numbers and the quality of the breed declined throughout the nineteenth century and for much of the twentieth. A breed society was formed in 1878, and a herd-book published in that year.
Breed clubs are associations or clubs with activities centered on a single, specific breed of a particular species of domesticated animal. The purpose of the association will vary with the species of animal and the goals and needs of the members of the association. Breed associations or clubs may vary in their goals, activities and nomenclature from country to country, even for the same breed. Most domesticated animals, whether they are agricultural animals such as cattle, llamas, poultry, sheep and pigs, or companion animals such as pigeons, horses, cats and dogs, have breed clubs associated with the breed.
The Dairy Shorthorn is a British breed of dairy cattle. It derives from the Shorthorn cattle of Tees-side, in the North Riding of Yorkshire and in Northumbria in north-eastern England. The Shorthorn was for this reason at first known as the Durham or Teeswater.
The Cotswold is a British breed of domestic sheep. It originates in, and is named for, the Cotswold hills of the southern midlands of England. It is a large long-woollen sheep, and is kept as a dual-purpose breed, providing both meat and wool.
The Border Leicester is a British breed of sheep. It is a polled, long-wool sheep and is considered a dual-purpose breed as it is reared both for meat and for wool. The sheep are large but docile. They have been exported to other sheep-producing regions, including Australia and the United States.
Swaledale is a breed of domestic sheep named after the Yorkshire valley of Swaledale in England. They are found throughout the more mountainous areas of Great Britain, but particularly in the Yorkshire Dales, County Durham, and around the pennine fells of Cumbria.
The Southdown is a British breed of domestic sheep, the smallest of the British breeds. It is a shortwool breed, and the basis of the whole Down group of breeds. It was originally bred by John Ellman of Glynde, near Lewes in East Sussex, in about 1800. It has been exported to many countries; it has been of particular importance in New Zealand, where it was used in the breeding of Canterbury lamb. In the twenty-first century it is kept principally as a terminal sire.
The Corriedale is a New Zealand breed of sheep. It was bred from about 1882 in the South Island by James Little, who cross-bred Merino and Lincoln Longwool sheep. The breed was officially recognised in 1911. It has been exported to Australia and to many countries in Africa, Asia, Europe and North and South America. In 2021 it was reported from twenty-five countries, and the total population was estimated at just over 5 million.
The Leicester Longwool is an English breed of sheep. Alternative names for the breed include: Leicester, Bakewell Leicester, Dishley Leicester, English Leicester, Improved Leicester and New Leicester. It was originally developed by 18th-century breeding innovator Robert Bakewell.
The Bluefaced Leicester (BFL) is a longwool breed of sheep which evolved from a breeding scheme of Robert Bakewell, in Dishley, Leicestershire in the eighteenth century. First known as the Dishley Leicester, and then the Hexham Leicester, because of the prevalence of the breed in Northumberland, the name Bluefaced Leicester became known at the beginning of the 20th century. In the 1970s, the Bluefaced Leicester was exported to Canada. Exported frozen semen from the United Kingdom is now used to expand the genetic diversity in Canada and the United States. It is raised primarily for meat.
The Bleu du Maine is a French breed of domestic sheep. It originated in the historic region of Maine, and is distributed mainly in the départements of Maine-et-Loire, the Mayenne and the Sarthe in the Pays de la Loire in western France.
The Wensleydale is a British breed of domestic sheep. It is named for the Wensleydale region of North Yorkshire, in the north of England, where it was bred in the early nineteenth century by cross-breeding a Dishley Leicester ram with local long-woolled sheep of a breed that is now extinct. It has a blue-grey face and long purled wool, and is among the heaviest of British sheep breeds. It is an endangered breed, and is categorised as "at risk" by the Rare Breeds Survival Trust. It is often used as a ram breed to cross with other breeds to obtain market lambs, and for its high-quality wool.
The Galway sheep is a breed of domestic sheep originating in County Galway, in the west of Ireland, based on the earlier Roscommon sheep of neighbouring County Roscommon. They are a large, polled, white-faced sheep, having a characteristic bob of wool on the head and legs. The outer lips are of a dark colour and dark spots on the ears are common. The average litter size is 1.45 in pedigree flocks. While a major proportion of ewes within the bred weigh 80–85 kg and have a litter size of 1.3, there is wide variation to be found. This breed is primarily raised for meat.
The British Milksheep is a robust, dual-purpose sheep commonly known for its milking characteristics.
The Devon Longwool was a British breed of domestic sheep from south-west England. It was distributed in southern Somerset and northern Devon, and was – like the Greyface Dartmoor and the South Devon – a polled longwool sheep. It is now considered extinct, as in 1977 it was merged with the South Devon to form the Devon and Cornwall Longwool.
William Youatt was an English veterinary surgeon and animal welfare writer.
Christian Carl André (1763–1831) was a leading 19th century European natural scientist, publisher, economist and educator. He was among the pioneers in the study of heredity whose vision paved the way for the research of Gregor Mendel, the founder of modern genetics.
George Culley was an English agriculturist.
