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70-877: The Bullenbeisser (German: Bullenbeißer ), also known as the German Bulldog , is an extinct breed of dog known for its strength and agility . Dog breed A dog breed is a particular type of dog that was purposefully bred by humans to perform specific tasks, such as herding, hunting, and guarding. Dogs are the most variable mammal on Earth, with artificial selection producing upward of 360 globally recognized breeds. These breeds possess distinct traits related to morphology, which include body size and shape, tail phenotype , fur type, etc, but are only one species of dog. Their behavioral traits include guarding, herding, and hunting, and personality traits such as hyper-social behavior, boldness, and aggression. Most breeds were derived from small numbers of founders within

140-456: A breed standard which is a written description of the ideal specimen of the breed. Other uses of the term breed when referring to dogs include pure breeds , cross-breeds , mixed breeds and natural breeds . Prior to the standardization of dog breeds, there were many different types of dogs that were defined by their own, unique functions. Many different terms were used to describe dogs, such as breed, strain, type, kind, and variety. By

210-457: A lncRNA variant in the IGF1 region arisen in wolves from northern latitudes c. 53.000 years ago and fixed by natural and subsequently by human selection. Their behavioral traits include guarding, herding, and hunting, retrieving, and scent detection. Their personality traits include hypersocial behavior, boldness, and aggression, which demonstrates the functional and behavioral diversity of dogs. As

280-737: A "Velcro dog"). Small animals including cats may be the subject of prey-driven behaviour by Greyhounds. The original primary use of Greyhounds, both in the British Isles and on the Continent of Europe, was in the coursing of deer for meat and sport; later, specifically in Britain, they specialized in competition hare coursing . Some Greyhounds are still used for coursing, although artificial lure sports like lure coursing and racing are far more common and popular. Many leading 300- to 550-yard sprinters have bloodlines traceable back through Irish sires, within

350-456: A "school" book about hawking , hunting, fishing, and heraldry , attributed to Juliana Berners (Barnes), lists dogs of the time mainly by function: "First there is a greyhound, a bastard, a mongrel , a mastiff, a limer, a spaniel, " raches " (small-to-medium-sized scenthounds), "kennets" (small hunting dogs), terriers , "butcher's hounds", dung-heap dogs, "trundel tails" ( lapdogs ?) and prick-eared curs , and small ladies puppies that bear away

420-450: A 0.46 kg (1.0 lb) teacup poodle to a 90 kg (200 lb) giant mastiff . The skull, body, and limb proportions vary significantly between breeds, with dogs displaying more phenotypic diversity than can be found within the entire order of carnivores. These breeds possess distinct traits related to morphology, which include body size, skull shape, tail phenotype, fur type and colour. The difference in size has been attributed to

490-570: A 2010 study ( Afghan Hound , Akita , Alaskan Malamute , American Eskimo , Basenji , Canaan dog , Chow Chow , Dingo , New Guinea singing dog , Saluki , Samoyed , Shar-Pei , Siberian Husky ), plus another three: the Eurasier , Finnish Spitz and Shiba Inu . The study referred to these 16 as basal breeds, as opposed to ancient breeds, as they exhibited genetic divergence but not all of them were historically considered to be "ancient breeds". The 2012 study found that modern breeds only emerged in

560-657: A few generations of racers that won events such as the Irish Coursing Derby or the Irish Cup. Until the early 20th century, Greyhounds were principally bred and trained for hunting and coursing . During the 1920s, modern greyhound racing was introduced into the United States, England (1926), Northern Ireland (1927), Scotland (1927), and the Republic of Ireland (1927). Australia also has a significant racing culture. In

630-656: A full speed of at least 21.3 m/s (77 km/h) 47 mph. However, the most common speeds at which they usually win races are 58–61 Km/h (16–17 m/s ). Its maximal speed is attained whether both running in a straight or bending track. Males are usually 71 to 76 centimetres (28 to 30 in) tall at the withers , and weigh on average 27 to 40 kilograms (60 to 88 lb). Females tend to be smaller, with shoulder heights ranging from 66 to 71 centimetres (26 to 28 in) and weights from 25 to 34 kilograms (55 to 75 lb), although weights can be above and below these average weights. Greyhounds have very short fur, which

700-454: A general lack of body fat, also makes Greyhounds more susceptible to extreme temperatures (both hot and cold); because of this, they must be housed inside. Some Greyhounds are susceptible to corns on their paw pads; a variety of methods are used to treat them. Thyroxine levels in the Greyhound are below the normal reference range for dogs; thyroxine response to thyroid-stimulating hormone

770-703: A known foundation stock may still not be recognized by some clubs as breeds. For instance, the feist is a hunting dog raised in the Southern United States for hunting small game. Feists have a consistent set of characteristics that reliably differentiate them from other dog types and breeds. However, the United Kennel Club recognizes one breed of feist, the Treeing Feist , while the American Kennel Club does not recognize any feist breed. A dog

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840-408: A mix of two breeds and is not the result of intentional breeding . In the United States, the term mixed-breed is a favored synonym over mongrel among individuals who wish to avoid negative connotations associated with the latter term. The implication that such dogs must be a mix of defined breeds may stem from an inverted understanding of the origins of dog breeds. Purebred dogs have been, for

910-676: A particular environment and in isolation from other populations of the species. This environment included humans but with little or no selective breeding by humans . Greyhound Greyhounds are defined as a tall, muscular, smooth-coated, "S-shaped" type of sighthound with a long tail and tough feet. Greyhounds are a separate breed from other related sighthounds, such as the Italian greyhound . The Greyhound's combination of long, powerful legs, deep chest, flexible spine, and slim build allows it to reach average race speeds exceeding 64 kilometres per hour (40 mph). A racing greyhound can reach

980-561: A result, today dogs are the most abundant carnivore species and are dispersed around the world. The most striking example of this dispersal is that of the numerous modern breeds of European lineage during the Victorian era . A genetic study identified 51 regions of the dog genome which were associated with phenotype variation among breeds in the 57 traits studied, which included body, cranial, dental, and long bone shape and size. There were three quantitative trait loci that explained most of

1050-488: A select set of ancestors who had the same characteristics. Dogs of a specific breed breed true , producing young that are very similar to their parents. An individual dog is identified as a member of a breed through proof of ancestry, using genetic analysis or written records of ancestry. Without such proof, identification of a specific breed is not reliable. Such records, called stud books , may be maintained by individuals, clubs, or other organizations. Kennel clubs provide

1120-724: A sled dog is 20–25 kg (44–55 lb) based on thermo-regulation, and the ancient sled dogs were between 16–25 kg (35–55 lb). The same standard has been found in the remains of sled dogs from this region 2,000 years ago and in the modern Siberian Husky breed standard. Other dogs were larger at 30 kg (66 lb) and appear to be dogs that had been crossed with wolves and used for polar-bear hunting. Between 3,000 and 4,000 years ago greyhound -types of dogs were depicted on pottery and paintings in Egypt and Western Asia. Mastiff -type dogs were kept for guarding and hunting, and short-legged dogs were also bred. Most modern dog breeds are

1190-407: A study indicated that some breed-temperaments, such as anxiety or fear, may be linked to gene mutations. Other temperaments may be due to the legacies of 'ancient' ancestry. Groups of owners that have dogs of the same breed and have an interest in dog breeding can form national Kennel clubs . Kennel Clubs maintain breed standards , record pedigrees in a breed registry (or studbook), and issue

1260-506: Is a disorder of the fibrinolysis system without derangement of the primary or secondary coagulation systems , and is also not related to platelet count. In this syndrome there is initial adequate hemostasis following trauma or routine surgical procedures, however 36–48 hours later the site undergoes inappropriate hyperfibrinolysis . This results in delayed bleeding which can result in significant morbidity and mortality. Standard pre-operative blood work does not identify those at risk It

1330-475: Is a global organisation with 98 members and contract partners (one member per country) that recognize 356 purebreds. A dog crossbreed is the result of mating two different breeds. "Designer Dog" became a fad in the late 20th century. Dog crossbreeds are combinations of lineages of the domestic dog ; they are distinguished from canid hybrids , which are interspecific crosses between Canis species (wolves, coyotes, jackals, etc.). Notable canid hybrids include

1400-731: Is a term formerly, but no longer, used for a particular group of dog breeds by the American Kennel Club. These breeds were referred to as "ancient", as opposed to modern, breeds because historically it was believed their origins dated back more than 500 years. In 2004, a study looked at the microsatellites of 414 purebred dogs representing 85 breeds. The study found that dog breeds were so genetically distinct that 99% of individual dogs could be correctly assigned to their breed based on their genotype , indicating that breeding barriers (purebred breeding) have led to distinct genetic units. The study identified 9 breeds that could be represented on

1470-556: Is also lowered. This can impact testing for thyroid disease but it is not a concern for health. "The true origin of the greyhound is unsure, but drawings of findings from the Çatalhöyük site in Turkey (6000 BC), the finding of a greyhound- like dog in a funeral vase in the town of Fusa in Iran (4200 BC) or in rock art in Tassili (dated at 5000 – 2000 BC) indicate that the greyhound is indeed one of

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1540-692: Is distinct from common bleeding disorders in other breeds such as von Willebrand's disease , which is uncommon in Greyhounds. Although high-quality research data are lacking, it is thought that this condition can be prevented and treated by administering antifibrinolytic medication such as tranexamic acid via the oral or parenteral route. Intensive care and blood product administration may also be required in severe cases. Greyhounds do not have undercoats and thus are less likely to trigger dog allergies in humans (they are sometimes incorrectly referred to as " hypoallergenic "). The lack of an undercoat, coupled with

1610-455: Is easy to maintain. There are approximately 30 recognized color forms, of which variations of white, brindle, fawn (pale tan to dark deer-red), black, red, and blue (gray) can appear uniquely or in combination. Greyhounds are dolichocephalic , with a skull which is relatively long in comparison to its breadth, and an elongated muzzle. Greyhounds live most happily as pets in quiet environments. They do well in families with children, as long as

1680-565: Is neither a breed registry nor does it issue pedigrees or keep addresses for breeders. It is a global canine organization with member and contract partners (one member per country) that conduct international conformation shows, working/hunting/herding trials, and various other events. The results are submitted to FCI for processing, approval and international recognition. Each of the member and contract partners issue and maintain their own pedigrees and respective breed standards, and train their own judges. FCI ensures that each member mutually recognizes

1750-575: Is said to be purebred if their parents were purebred and if the dog meets the standards of the breed. The American Kennel Club allows mixed-breed dogs to be shown but under the condition the animals have been spayed or neutered, are not a wolf hybrid, and not eligible for the AKC Foundation Stock Service Program or an AKC Purebred Alternative Listing (PAL). In Canada, the Animal Pedigree Act lays out strict standards for

1820-658: Is still used for dogs in general in Scandinavian languages today. Its origin does not appear to have any common root with the modern word "grey" for color, and indeed the Greyhound is seen with a wide variety of coat colors. The lighter colors, patch-like markings and white appeared in the breed that was once ordinarily grey in color. The Greyhound is the only dog mentioned by name in the Bible ( Hebrew : זַרְזִיר מׇתְנַיִם , zarir mosna'im ) in Proverbs 30:29–31 . Many versions, including

1890-607: The Czech lands. The earliest archaeological discovery found conclusively to be a greyhound specifically was at the Chotěbuz fort in the Czech Republic . This comprised sighthound type "gracile" bones dating from the 8th to 9th century AD. These bones matched those of a 70 cm (28 in) high "greyhound", and were also genetically compared with the modern Greyhound and other sighthounds, and found to be almost completely identical with

1960-502: The Fédération Cynologique Internationale ." In 2017, a study showed that 9,000 years ago the domestic dog was present at what is now Zhokhov Island , arctic north-eastern Siberia, which was connected to the mainland at that time. The dogs were selectively bred as either sled dogs or as hunting dogs, which implies that a sled dog standard and a hunting dog standard existed at that time. The optimal maximum size for

2030-639: The Jewish Publication Society and King James Version , name the Greyhound as one of the "three that are stately of stride". However, some newer biblical translations, including the New International Version , have changed this to 'strutting rooster', which appears to be an alternative translation. According to Pokorny , the English term 'Greyhound' does not mean "grey dog/hound", but simply "fair dog". Subsequent words have been derived from

2100-543: The Proto-Indo-European root *g'her- "shine, twinkle": English 'grey', Old High German gris "grey, old", Old Icelandic griss "piglet, pig", Old Icelandic gryja "to dawn", gryjandi "morning twilight", Old Irish grian "sun", Old Church Slavonic zorja "morning twilight, brightness". The common sense of these words is "to shine; bright". In 1928, the first winner of Best in Show at Crufts

2170-484: The coydog , coywolf , dingo–dog hybrid , jackal–dog hybrid , and wolfdog .   Historically, crosses between dogs of different types were more well accepted at a time when modern purebred breeds (based on the eugenics principles) did not yet exist. Some crossbred dogs, created by breeding two purebred dogs of different breeds, may have the advantage of heterosis , or crossbreed vigor. This advantage can be progressively diluted when two crossbreeds are bred in

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2240-418: The fleas and diverse small sorts." A study in 2012 examined 49,000 single nucleotide polymorphisms that gave a genome -wide coverage of 1,375 dogs representing 35 breeds, 19 wolves, and previous published genetic signatures of other breeds, giving a total of 121 breeds covered. The study found a deep genetic split between old-world and new-world wolves, and confirmed the genetic divergence of 13 breeds from

2310-500: The 19th century and that claims of their antiquity are based on little or no historical or empirical evidence. The study indicated that throughout history, global dog populations experienced numerous episodes of diversification and homogenization, with each round further reducing the power of genetic data derived from modern breeds to help infer their early history. Of the basal breeds, the American Eskimo Dog and Eurasier were

2380-399: The English language to mention numbers of dog types are from the "Cynegetica" (hunting literature), namely, The Art of Venery (1327) by Twiti (Twici), a treatise that describes hunting with the limer (a leashed bloodhound type); the pack of running hounds , which included barcelets and brachetz (both scent hounds ); and the sighthound and greyhound . More significant in recording

2450-597: The United Kingdom. Historically, these sighthounds were used primarily for hunting in the open where their pursuit speed and keen eyesight were essential. The name "Greyhound" is generally believed to come from the Old English ' grighund ' . Hund is the antecedent of the modern "hound", but the meaning of grig is undetermined, other than in reference to dogs in Old English and Old Norse . The word "hund"

2520-669: The United States, aside from professional racing, many Greyhounds enjoy success on the amateur race track. Organizations like the Large Gazehound Racing Association (LGRA) and the National Oval Track Racing Association (NOTRA) provide opportunities for Greyhounds to compete. Historically, the Greyhound has, since its first appearance as a hunting type and breed, enjoyed a specific degree of fame and definition in Western literature, heraldry and art as

2590-460: The United States. Outside the racing industry and coursing community, the Kennel Clubs' registered breed still enjoys a modest following as a show dog and pet. A 2024 UK study found a life expectancy of 11.5 years for the breed compared to an average of 12.7 for purebreeds and 12 for crossbreeds . A 2005 Swedish study of insurance data found 60% of Greyhounds died by the age of 10, higher than

2660-445: The attempt to create a breed, narrowing the gene pool. The best way to continue taking advantage of crossbreed vigor is from the breeding of dogs of purebred ancestry, as this vigor is typically seen only in the first generation cross of two purebred animals of separate breeds, thus taking advantage of genetic diversity . A mongrel, mixed-breed dog or mutt is a dog that does not belong to one officially recognized breed but can be

2730-548: The branches of a phylogenetic tree which grouped together with strong statistical support and could be separated from the other breeds with a modern European origin. These 9 breeds had been referred to as "ancient breeds". The study found that the Pharaoh Hound and Ibizan Hound were not as old as once believed; rather, they had been recreated from combinations of other breeds, and that the Norwegian Elkhound grouped with

2800-882: The breed club to be unacceptable (called faults ). In addition, most breed standards include a historical section, describing the place of origin and the original work done by the breed or its ancestor types . Dogs with a breed standard may be accepted into one or more of the major registries ( kennel clubs ) of dog breeds, including The Kennel Club (1873, UK), American Kennel Club (1884), New Zealand Kennel Club (1886), Canadian Kennel Club (1888), United Kennel Club (1898), United Kennel Clubs International (UCI, Germany 1976), Australian National Kennel Council (1958), and other national breed registries. Recognized dog breeds are classified by groups , such as Hound, Terrier, Working, Herding, Sporting, Non-Sporting, Toy and Miscellaneous; some groups may be further subdivided by some registries. Fédération Cynologique Internationale (FCI)

2870-506: The breed is generally needed when the dogs need treatment, particularly when anesthesia is required. Greyhounds cannot metabolize barbiturate -based anesthesia in the same way that other breeds can because their livers have lower amounts of oxidative enzymes . Greyhounds demonstrate unusual blood chemistry, which can be misread by veterinarians not familiar with the breed and can result in an incorrect diagnosis. Greyhounds are very sensitive to insecticides . Many vets do not recommend

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2940-498: The breeding, exhibiting and judging of pure-bred dogs. It now has 99 member countries. According to BigThink , over 40% of the world’s dog breeds come from the United Kingdom , France and Germany . It states: " Great Britain and France are the ground zero of dog fancying, with 57 registered breeds each. Germany is not far behind, with 47 breeds. These three countries alone represent more than 40% of all dog breeds recognized by

3010-463: The children are taught to treat the dog properly with politeness and appropriate respect. Greyhounds have a sensitive nature, and gentle commands work best as training methods. Occasionally, a Greyhound may bark; however, they are generally not barkers, which is beneficial in suburban environments, and they are usually as friendly to strangers as they are with their own families. A 2008 University of Pennsylvania study found that Greyhounds are one of

3080-461: The documenting of what it calls "evolving breeds". The breed standard for each breed of dog is a detailed description of the appearance and behaviour of an idealized dog of that breed. Included in the breed standard description are externally observable aspects of appearance and behaviour that are considered by the breed club to be the most important for the breed, and externally observable details of appearance or temperament that are considered by

3150-556: The dog–wolf genetic divergence are not known. Dogs are the most variable mammal on earth with around 450 globally recognized dog breeds. In the Victorian era , directed human selection developed the modern dog breeds, which resulted in a vast range of phenotypes. Most breeds were derived from small numbers of founders within the last 200 years, and since then dogs have undergone rapid phenotypic change and were formed into today's modern breeds due to artificial selection imposed by humans. These breeds can vary in size and weight from

3220-617: The early period of Roman occupation, the Vindolanda tablets (No. 594), demonstrate that the occupying troops from Continental Europe either had with them in the North of England, or certainly knew of, the vertragus and its hunting use. During the Middle Ages , greyhounds could only be owned by rulers and nobles, having long been associated with heraldic symbols of the ruling class in England, France, and

3290-504: The end of the Victorian era, society had changed and so did the role of dogs. The form was given a more prominent role than function. Different types or breeds of dog were being developed by breeders who wanted to define specific characteristics and desirable features in their dogs. Driven by dog shows and the groups that hosted them, the term dog breed took on an entirely new meaning. Dog show competitions included best-in-breed winners, and

3360-407: The ground in two phases, contracted and extended, during each full stride. The musculature of both hindlimbs constitutes more than 18 % of their body mass. The proportion of both forelimbs muscle mass is very similar. The proportion of back musculature is 12 % of their body mass. Due to the Greyhound's unique physiology and anatomy, a veterinarian who understands the issues relevant to

3430-500: The hound to move larger quantities of oxygen faster from the lungs to the muscles. Conversely, Greyhounds have lower levels of platelets than other breeds. Delayed haemorrhage following trauma or routine surgery is more common in Greyhounds, with one study reporting significant haemorrhage in 26% of Greyhounds following routine gonadectomy , compared to 0-2% in other dog breeds. This is often termed greyhound fibrinolytic syndrome or breed-associated hyperfibrinolysis, where in there

3500-437: The last 200 years. As a result of their adaptability to many environments and breedability for human needs, today dogs are the most abundant carnivore species and are dispersed around the world. A dog breed will consistently produce the physical traits, movement and temperament that were developed over decades of selective breeding. For each breed they recognize, kennel clubs and breed registries usually maintain and publish

3570-696: The least aggressive dog breeds towards strangers, owners, and other dogs. However, Greyhounds can be prone to sleep startle/sleep aggression if suddenly disturbed while napping. Owners can encounter this problem, as many greyhounds sleep with their eyes at least partially open, appearing awake. A survey of those adopting rescue Greyhounds found that Greyhound adoptions have higher short term adoption success than shelters. The survey also found reported hyperactivity levels to be below that of shelter dogs. Greyhounds tend to be outgoing, happy and sociable with people and seem to relish human contact, even following owners from room to room at home (known colloquially as being

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3640-535: The modern Greyhound breed, with the exception of only four deletions and one substitution in the DNA sequences, which were interpreted as differences probably arising from 11 centuries of breeding of this type of dog. All modern pedigree Greyhounds derive from the Greyhound stock recorded and registered first in private studbooks in the 18th century, then in public studbooks in the 19th century, which ultimately were registered with coursing, racing, and kennel club authorities of

3710-454: The modern breeds because the genetic heritage of the modern breeds has become blurred due to admixture, and the basal breeds have mostly avoided admixture with them due to geographic or cultural barriers. As dogs are a subspecies but their breeds are distinct genetic units, and because only certain breeds share the same type of cancers as humans, the differences in the genes of different breeds may be useful in human medical research. In 2014,

3780-400: The most elegant or noble companion and hunter of the canine world. In modern times, the professional racing industry, with its large numbers of track-bred greyhounds, as well as international adoption programs aimed at re-homing dogs has redefined the breed as a sporting dog that will supply friendly companionship in its retirement. This has been prevalent in recent years due to track closures in

3850-416: The most part, artificially created from random-bred populations by human selective breeding with the purpose of enhancing desired physical, behavioral, or temperamental characteristics. Dogs that are not purebred are not necessarily a mix of such defined breeds. Therefore, among some experts and fans of such dogs, mongrel is still the preferred term. Natural breeds rose through time in response to

3920-460: The oldest breeds of dog.". The ancient skeletal remains of a dog identified as being of the greyhound/ saluki form were excavated at Tell Brak in modern Syria, and dated as being approximately 4,000 years old. Dogs that look similar to Salukis and Greyhounds were increasingly depicted on Egyptian tombs from the Middle Kingdom (2134 BC–1785 BC) onward. Historical literature by Arrian on

3990-458: The other European dogs despite reports of direct Scandinavian origins dating back 5,000 years. Dog types are broad categories of dogs based on form, function or style of work, lineage, or appearance. In contrast, modern dog breeds are particular breed standards, sharing a common set of heritable characteristics, determined by the kennel club that recognizes the breed. The spread of modern dog breeds has been difficult to resolve because many are

4060-428: The overall rate of 35% of dogs dying by the age of 10. The speed of a Greyhound is due to its light but muscular build, large heart , highest percentage of oxidative–glycolytic fast twitch muscle fibers (Type IIa) of any breed, double suspension gallop , and extreme flexibility of its spine . "Double suspension rotary gallop" describes the fastest running gait of the Greyhound in which all four feet are free from

4130-441: The pedigrees and judges of all FCI members. Purebred dogs have more health problems than mongrel dogs, and require more veterinary visits, and tend to have lower longevity. Indeed, studies have reported lifespans that are shorter by between one and almost two years. Notably, dog breeds with flat faces and short noses have breathing difficulties, eye trouble and other health issues. The Fédération Cynologique Internationale

4200-412: The phenotype variation. Indicators of recent selection were shown by many of the 51 genomic regions that were associated with traits that define a breed, which include body size, coat characteristics, and ear floppiness. Wolf Shar Pei Shiba Inu Chow Chow Akita Inu Basenji Siberian Husky Alaskan Malamute Afghan Hound Saluki other breeds in the study "Ancient breed"

4270-598: The product of the controlled breeding practices of the Victorian era (1830–1900). In 2010, a study looked at 48,000  single nucleotide polymorphisms that gave a genome -wide coverage of 912 dogs representing 85 breeds. The study found distinct genetic clusters within modern dogs that largely corresponded to phenotype or function. These included spitz-breeds, toy dogs, spaniels, Mastiff-like breeds, small terriers, retrievers, herding dogs, scent-hounds, and sight-hounds. There were 17 breeds that conflicted with phenotype or function and these were thought to be

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4340-501: The products of the controlled breeding practices of the Victorian era (1830-1900), and the accurate documenting of pedigrees with the establishment of the English Kennel Club in 1873 in imitation of other stud book registries for cattle and horses. The domestic dog is the first species, and the only large carnivore , to have been domesticated. The first dogs were certainly wolflike, but the phenotypic changes that coincided with

4410-470: The purebreds were winning. Breed standards are the reason the breed came to be, and with those standards are key features, including form, function and fitness for purpose. The Kennel Club in the UK was founded in 1873, and was the world's first national kennel club and breed registry. The International Canine Federation was founded in 1911 as a worldwide organization. Its objective is to bring global uniformity to

4480-534: The recognition of distinct dog breeds, but there are many independent clubs with differing, and sometimes inconsistent standards and they need not apply scientific standards. Four varieties of the Belgian Shepherd Dog are recognised as four distinct breeds by the New Zealand Kennel Club . Further, some groups of dogs which clearly share a persistent set of characteristics and documented descent from

4550-633: The result of crossing some of the other phenotypes. As in a 2004 study that found 9 'ancient breeds' to be genetically divergent, the study found 13 breeds that were genetically divergent from the modern breeds: the Basenji , Saluki , Afghan hound , Samoyed , Canaan dog , New Guinea singing dog , dingo , Chow Chow , Chinese Shar Pei , Akita , Alaskan malamute , Siberian husky and American Eskimo dog . The study found that there were three well-supported groups that were highly divergent and distinct from modern domestic dogs. The earliest books in

4620-455: The rules for conformation dog shows and trials and accreditation of judges. They often serve as registries , which are lists of adult purebred dogs and lists of litters of puppies born to purebred parents. A dog breed is represented by a sufficient number of individuals to stably transfer its specific characteristics over generations. Dogs of same breed have similar characteristics of appearance and behavior, primarily because they come from

4690-542: The use and description of various dog types is The Master of Game (circa 1406) by Edward of York , a treatise that describes dogs and their work, such as the alaunt , greyhound, pack scent hounds, spaniel , and mastiff , used by the privileged and wealthy for hunting purposes. The Master of Game is a combination of the earlier Art of Venery and the French hunting treatise Livre de Chasse by Gaston Phoebus (circa 1387). The Book of Saint Albans , published in 1486,

4760-406: The use of flea collars or flea spray on Greyhounds if the product is pyrethrin -based. Products like Advantage , Frontline , Lufenuron , and Amitraz are safe for use on Greyhounds, however, and are very effective in controlling fleas and ticks . Greyhounds have higher levels of red blood cells than other breeds. Since red blood cells carry oxygen to the muscles, this higher level allows

4830-634: The vertragus (from the Latin vertragus , a word of Celtic origin), the first recorded sighthound in Europe and possible antecedent of the Greyhound, suggested that its origin lies with the Celts from Eastern Europe or Eurasia. Systematic archaeozoology of Britain conducted in 1974 ruled out the existence of a true greyhound-type in Britain prior to the Roman occupation, which was further confirmed in 2000. Written evidence from

4900-478: The very recent product of cross-breeding other basal breeds. Most basal breeds have hybridized with other lineages in the past. If those other lineages were other basal breeds then a basal genetic signature remains. The combination of introgression and past population bottlenecks suggested that basal breeds have little or no genetic connections to their ancestral populations and that their genetic distinctiveness does not signify ancient heritage. They are distinctive from

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