A gray horse (or grey horse ) has a coat color characterized by progressive depigmentation of the colored hairs of the coat. Most gray horses have black skin and dark eyes; unlike some equine dilution genes and some other genes that lead to depigmentation, gray does not affect skin or eye color. Gray horses may be born any base color, depending on other color genes present. White hairs begin to appear at or shortly after birth and become progressively more prevalent as the horse ages as white hairs become intermingled with hairs of other colors. Graying can occur at different ratesโvery quickly on one horse and very slowly on another. As adults, most gray horses eventually become completely white, though some retain intermixed light and dark hairs.
61-416: The stages of graying vary widely. Some horses develop a dappled pattern for a period of time, others resemble a roan with more uniform intermixing of light and dark hairs. As they age, some gray horses, particularly those heterozygous for the gray gene, may develop pigmented speckles in addition to a white coat, a pattern colloquially called a "fleabitten gray." Gray horses appear in many breeds, though
122-426: A pedigree , pedigreed animal documentation , or most commonly, an animal's " papers ". Registration papers may consist of a simple certificate or a listing of ancestors in the animal's background, sometimes with a chart showing the lineage. There are breed registries and breed clubs for several species of animal, such as dogs , horses , cows and cats . The European Association of Zoos and Aquaria (EAZA) and
183-442: A pedigree , pedigreed animal documentation , or most commonly, an animal's "papers". Registration papers may consist of a simple certificate or a listing of ancestors in the animal's background, sometimes with a chart showing the lineage. Usually, there is space for the listing of successive owners, who must sign and date the document if the animal is gifted, leased or sold. Papers transferred upon sale of an animal may be submitted to
244-401: A roan or a rabicano . Some heavily fleabitten grays may also be confused with roans. However, roans are easily distinguishable from grays: roan consists of individual white hairs on a dark base coat, usually with the head and legs of the horse darker than the rest of the body. Rabicanos also have intermixed white hairs primarily on the body with a dark head. With gray horses, the head is often
305-558: A certain standard of conformation, performance or both. This allows breeders to modify breeds by including individuals who conform to the breed standard but are of outside origin. Some horse breeds allow crossbreds who meet specific criteria to be registered. One example is the semi-open stud book of the American Quarter Horse , which still accepts horses of Thoroughbred breeding, particularly via its appendix registry . Among dogs, an example of an open stud book would be
366-431: A common ancestor that lived at least two thousand years ago. The discovery that gray can be linked to a single animal provides an example of how humans have "cherry-picked" attractive mutations in domestic animals. Gray is controlled by a single dominant allele of a gene that regulates specific kinds of stem cells . Homozygous grays turn white faster, are more likely to develop melanomas, and are less prone to develop
427-438: A different color over time, sometimes resulting in a need to change the color noted on breed registry papers. Other times, people traveling with gray horses who have a pure white hair coat have encountered problems with non-horse-oriented officials such as police officers or border guards who are unclear about a horse who has papers saying it is "gray" when the horse in front of them appears white. To further complicate matters,
488-439: A gray horse as "white". However, most white horses have pink skin and some have blue eyes. A horse with dark skin and dark eyes under a white hair coat is gray. However, a gray horse with an underlying homozygous cream base coat color may be born with rosy-pink skin, blue eyes and near-white hair. In such cases, DNA testing may clarify the genetics of the horse. Some grays in intermediate stages of graying may be confused with
549-439: A gray horse is homozygous (GG), meaning that it has a gray allele from both parents, it will always produce gray offspring no matter the color genetics of the other parent. However, if a gray horse is heterozygous (Gg), meaning it inherits one copy of the recessive gene (g), that animal may produce offspring who are not gray, depending on the genetics of the other parent and Mendelian inheritance principles . Genetic testing
610-491: A gray horse whose hair coat is completely "white" will still have black skin (except under markings that were white at birth) and dark eyes. This is how to discern a gray horse from a white horse . White horses usually have pink skin and sometimes even have blue eyes. Young horses with hair coats consisting of a mixture of colored and gray or white hairs are sometimes confused with roan . Some horses that carry dilution genes may also be confused with white or gray. While gray
671-443: A horse named Alcock's Arabian , a gray born in 1700. The gray coat color makes up about 3% of Thoroughbreds. Gray also affects spotting patterns of pintos and leopard complex horses such as Appaloosas . Its effects wash out the contrast of the markings of these patterns, sometimes colloquially described as "ghosting." A gray foal may be born any color. However, bay , chestnut , or black base colors are most often seen. As
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#1732794049996732-485: A name, a trademark , or anything that can be mistaken for the name of another kennel or, sometimes, stable . Only after an animal has achieved a legitimate championship will some registries permit the use of the prefix Ch., or other title before or after their registered name. Some registries may use symbols to designate the status of certain individuals. An asterisk * may be used to designate an animal born in another country and imported. A plus + may be used to designate
793-446: A new type, but the animals are not yet breeding true . Many such questionable registries are incorporated as for-profit commercial businesses, in contrast to the formal not-for-profit status of most reputable breed clubs. They may provide volume discounts for registrations by commercial dog breeders such as puppy mills. An unscrupulous registry for dogs or horses is often spotted by a policy to not require any proof of pedigree at all. In
854-515: A preliminary recording system often called an "appendix" registry. The most notable is that of the American Quarter Horse Association , which allows part-Thoroughbred/part-Quarter Horse foals to be recorded and shown, with full registration allowed after the horse achieves a set performance or merit standard akin to that of a merit registry. Other appendix registries are seen in certain color breeds of horses, such as
915-421: A simpler " pet name " known as a call name for dogs or a stable name for horses, which is used by their owners or handlers when talking to the animal. For example, the famous Thoroughbred race horse Man o' War was known by his stable name, "Big Red." The name can be anything that the animal's owner prefers. For example, the dog that won the 2008 Westminster show (US) was named K-Run's Park Me In First , with
976-412: A white coat (unless it is a true white horse ), while a horse in its teens usually is completely grayed out. One must also be careful not to confuse the small amount of gray hairs that may appear on some older horses in their late teens or twenties, which do not reflect the gray gene and never cause a complete graying of the horse. This change in hair color means that the same gray horse will appear to be
1037-447: Is a registry based on performance or conformation, called in some societies Registry on Merit. In such registries, an eligible animal that meets certain criteria is eligible to be registered on merit, regardless of ancestry. In some cases, even unknown or undocumented ancestry may be permitted. The Registry on Merit or ROM may be tied to percentage of bloodline, conformation, or classification or may be based solely on performance. In
1098-596: Is an example of a kennel club with primarily closed books for dogs ; it allows new breeds to develop under its Foundation Stock Service (FSS), but such dogs are not eligible for competition in AKC conformation shows , although they do compete at those shows in the FSS category. For the breed to move to the Miscellaneous class and then to fully recognized status, the breed's stud book must be closed. A closed stud book allows
1159-420: Is classified as a coat color by breed registries , genetically it may be more correct to call it a depigmentation pattern. It is a dominant allele , and thus a horse needs only one copy of the gray allele , that is, heterozygous , to be gray in color. A homozygous gray horse, one carrying two gray alleles, will always produce gray foals. Gray is common in many breeds. Today, about one horse in 10 carries
1220-506: Is now possible to determine whether a horse is homozygous or heterozygous for gray. The gray gene does not affect skin or eye color, so grays typically have dark skin and eyes, as opposed to the unpigmented pink skin of white horses . In 2008, researchers at Uppsala University in Sweden identified the genetic mutation that governs the graying process. The study revealed that all gray horses carry an identical mutation that can be traced back to
1281-490: Is one organization that uses such a system. A closed stud book is a stud book or breed registry that does not accept any outside blood. The registered animals and all subsequent offspring trace back to the foundation stock . This ensures that the animal is a purebred member of the breed. In horses, an example of a closed stud book is that of the Thoroughbred , with a stud book tracing to 1791. The American Kennel Club
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#17327940499961342-478: The Appaloosa , American Paint Horse , and American Cream Draft Horse , where foals with the proper pedigree for registration but do not meet the color standard for the breed, yet may still carry the necessary genetics in a minimally-expressed form, may be registered and bred to fully registered animals, with ensuing offspring eligible for registration if they meet the breed standard. Another form of open registry
1403-612: The Dachshund dog breed "Dapple" is also a common English translation of the Spanish name of Sancho Panza 's donkey in Don Quixote ; however, the Spanish name " Rucio " is perhaps more accurately translated as "gray-beige" or " taupe ". Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Dapple . If an internal link led you here, you may wish to change
1464-540: The Finnhorse and the Trakehner , may also have a set of studbook selection criteria where animals must meet either a conformation standard, a performance standard, or both. In an open stud book, animals may be registered even if their parents or earlier ancestors were not previously registered with that particular entity. Usually an open stud book has strict studbook selection criteria that require an animal to meet
1525-595: The United States is the Field Dog Stud Book . Working dog organizations also maintain registries. There are also entities that refer to themselves as registries, but that are thinly veiled marketing devices for vendors of puppies and adult dogs, as well as a means of collecting registration fees from novice dog owners unfamiliar with reputable registries and breed clubs. Although these entities generally focus on dogs, particularly in relationship to
1586-498: The breeder 's kennel prefix forms the first part of the dog's registered name. For example, all dogs bred at the Gold Mine Kennels would have names that begin with the words "Gold Mine". Horse breeders are usually not required to do this, but often find it to be a good form of commercial promotion to include a stable name or farm initials in the horse's name. For example, Gold Mine Stables may name give all horses names with
1647-451: The hobby of animal fancy , is an official list of animals within a specific breed whose parents are known. Animals are usually registered by their breeders while they are young. The terms studbook and register are also used to refer to lists of male animals "standing at stud", that is, those animals actively breeding, as opposed to every known specimen of that breed. Such registries usually issue certificates for each recorded animal, called
1708-431: The pearl gene or "barlink factor", may also create very light-coated horses. Similarly, the champagne gene can lighten coat color, often producing dappling or light colors that can be confused with gray. In spite of its name, the silver dapple gene has nothing to do with graying. It is a dilution gene that acts only on a black coat, diluting the coat to a dark brown and the mane to a flaxen shade. Horses that express
1769-664: The puppy mill industry, some are marketed as cat registries. At least one group claims to register wild species (held by private individuals rather than by legitimate zoological parks, which use the AZA ). Horse breeding also has such problematic registries, particularly for certain color breeds . While many color breeds are legitimate, some "registries" are primarily a marketing tool for poor quality animals that are not accepted for registration by more mainstream organizations. Other "registries" are marketing attempts to create new horse breeds, usually by breeders using crossbreeding to create
1830-410: The "fleabitten" speckling than heterozygous grays. Researchers suggest the pigmented speckles of the "fleabitten" gray, as well as more intense reddish-brown colored areas called "blood" markings, may be caused by a loss or inactivation of the gray allele in some of the somatic cells as that would explain why the speckles are more common on heterozygous grays than homozygotes. The identification of
1891-486: The Appaloosa and are seldom seen elsewhere. The dilution genes that create dun, cream, pearl, silver dapple and champagne coloring may occasionally result in confusion with gray. Some horses with a particular type of dun hair coat known as a "blue dun", grullo , or "mouse" dun appear to be a solid gray. However, this color is caused by the dun gene acting on a black base coat, and horses who are dun have all hairs
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1952-520: The US Association of Zoos and Aquariums (AZA) also maintains stud books for captive species on display ranging from aardvarks to zebras. Kennel clubs always maintain registries, either directly or through affiliated dog breed clubs . Some multi-breed clubs also maintain registries, as do non-affiliated breed clubs, and there are a few registries that are maintained by other private entities such as insurance agencies; an example of this in
2013-408: The breed by inbreeding from a limited set of animals. A related preservation method is backbreeding, used by some equine and canine registries, in which crossbred individuals are mated back to purebreds to eliminate undesirable traits acquired through the crossbreeding. Naming rules vary according to the species and breed being registered. For example, show horses have a registered name , that is,
2074-511: The breed to stay very pure to its type, but limits its ability to be improved. For instance, in performance disciplines, an animal that is successful in competitions is generally worth more than one that is pure. It also limits the gene pool , which may make certain undesirable characteristics become accentuated in the breed, such as a poor conformational fault or a disease. Some closed stud books, particularly for certain European breeds such as
2135-425: The call name of "Uno". Dogs in the breed registry of a working dog club (particularly herding dogs ) must usually have simple, no-nonsense monikers deemed to be "working dog names" such as "Pal", "Blackie", or "Ginger". The naming rules for independent dog clubs vary but are usually similar to those of kennel clubs. The registered name often refers directly or indirectly to the breeder of the animal. Traditionally,
2196-704: The color is most commonly seen in breeds descended from Arabian ancestors. Some breeds that have large numbers of gray-colored horses include the Thoroughbred , the Arabian , the American Quarter Horse and the Welsh pony . Breeds with a very high prevalence of gray include the Percheron , the Andalusian , and the Lipizzaner . People who are unfamiliar with horses may refer to gray horses as "white". However,
2257-426: The dog world, such registries may not sponsor competitions and thus cannot award championship points to identify the best individuals registered within a particular breed or species. In the less-organized world of horse shows , where many different sanctioning organizations exist, some groups sponsor their own competitions, though wins at such events seldom carry much prestige in mainstream circles. Some registers have
2318-418: The famous cutting horse Doc O'Lena was by Doc Bar out of Poco Lena , a daughter of Poco Bueno . Some names are a little less direct; 2003 Kentucky Derby winner Funny Cide was by Distorted Humor out of Belle's Good Cide, and the famous race horse Native Dancer was by Polynesian out of Geisha. Other breeders use themes. For example, a more imaginative breeder at the Gold Mine Kennels might name all
2379-425: The first area to lighten, especially around the eyes and muzzle. Also, roans do not lighten with age, while grays always do. The varnish roan is another unusual coloration, sometimes seen in Appaloosa horses, that, like gray, can change with age, but unlike gray, the horse does not become progressively lighter until it is pure white. Varnish roans are created by the action of leopard complex within breeds such as
2440-471: The ๐ [REDACTED] Look up dapple in Wiktionary, the free dictionary. Dapple may refer to: Dapple, a book by Eleanor Arnason DAPPLE Project , a pollution study Dapple gray , a type of coat colour seen on horses Silver dapple gene , also known as the "Z" gene, that dilutes the black base coat color in horses Merle (dog coat) , a pattern called "dapple" in
2501-465: The gray mutation is of great interest in of medical research since this mutation also enhances the risk for melanoma in horses: some studies have suggested as many as 80% of grays over 15 years of age have some form of melanoma. Growth rate depends on the type, and many are slow-growing, but over time, many develop into a malignant melanoma . The study of gray genetics has pointed to a molecular pathway that may lead to tumour development. Both STX17 and
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2562-433: The horse ages, the coat continues to lighten, often to a pure white. Some horses develop pigmented reddish-brown speckles on an otherwise white hair coat. Such horses are often called "fleabitten gray". Different breeds, and individuals within each breed, take differing amounts of time to gray out. Thus, graying cannot be used to approximate the age of a horse except in the broadest of terms: a very young horse will never have
2623-410: The horse matures, it "grays out" as white hairs begin to replace the base or birth color. Usually white hairs are first seen by the muzzle, eyes and flanks, occasionally at birth, and usually by the age of one year. Over time, white hairs replace the birth color. The changing patterns of white and dark hairs have many informal names, such as "rose gray," "salt and pepper," "iron gray", or "dapple gray." As
2684-528: The horse world, many warmblood breed organizations require a conformation and performance standard for registration, and often allow horses of many different breeds to qualify, though documented pedigrees are usually required. Some breed registries use a form of ROM in which horses at certain shows may be sight classified. For example, at qualifying shows in Australia , winning horses of stock-type breeding receive points for conformation, which are attested to by
2745-596: The incorporation of purebred animals descended from unregistered stock or of uncertain parentage. More controversial open stud books are those where there are few, if any qualifications for animals other than a single trait, such as a " color breed ," particularly when the color is not a true-breeding characteristic. However, some breeds have a standard color or color preference that is one criterion among others used to register animals. Some open or partly open registries may permit animals who have some but not all qualifications for full registration to nonetheless be entered in
2806-519: The judges and recorded in an owner's special book. The points are accumulated to eventually result in a Registry on Merit. Registry on Merit is prevalent with sheepdog registries, in particular those of the Border Collie , and some other breeds with a heavy emphasis on working ability . In this type of ROM, the dog's conformation and ancestry generally does not matter. Breed registries usually issue certificates for each recorded animal, called
2867-475: The letter "A," then "B" for litter B and so on. Horse breeders, especially in Europe, sometimes use the first letter of the dam's name as the first letter in the name of all of her offspring. Other breeders may use the same first letter to designate all the foals born on the farm in a given year. Some breeders create a name that incorporates or acknowledges the names of the sire, dam or other forebears. For example,
2928-460: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Dapple&oldid=1021347866 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Breed registry A breed registry , also known as a herdbook , studbook or register , in animal husbandry ,
2989-427: The mutation for graying with age. The vast majority of Lipizzaners are gray, as are the majority of Andalusian horses . Many breeds of French draft horse such as the Percheron and Boulonnais are often gray as well. Gray is also found among Welsh Ponies , Thoroughbreds , and American Quarter Horses . All of these breeds have common ancestry in the Arabian horse . In particular, all gray Thoroughbreds descend from
3050-410: The name under which they are registered as a purebred with the appropriate breed registry, and purebred dogs intended for the sport of conformation showing must be registered with the kennel club in which they will compete; and although there are no specific naming requirements, there are many traditions that may be observed in naming. Along with a registered name, these animals often also have
3111-594: The neighboring NR4A3 gene are overexpressed in melanomas from gray horses, and those carrying a loss-of-function mutation in ASIP (agouti signaling protein) had a higher incidence of melanoma, implying that increased melanocortin-1 receptor signaling promotes melanoma development in Gray horses. Some studies indicate as many as 66% of melanomas become malignant, though other studies have found much lower rates, and in one case, zero. Many people who are unfamiliar with horses refer to
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#17327940499963172-485: The prefix "Gold Mine", "GM", or "GMS". The Jockey Club , which registers Thoroughbreds in Great Britain , requires stable names to be registered, but does not require their use in animal names. Many dog breeders name their puppies sequentially, based on litter identification: Groups of puppies may be organized as Litter A, Litter B, and so on. When this is done, the names of all the puppies in litter A start with
3233-426: The puppies of one litter after green precious stones: Gold Mine Emerald, Gold Mine Jade, and Gold Mine Peridot. Names for a subsequent litter might start with the adjectives describing precious stones: Gold Mine Sparkle, Gold Mine Brilliance, and Gold Mine Chatoyant. Breeders may be as creative or as mundane as they wish. In order to minimize the unwieldiness that long and fancy names can bring, registries usually limit
3294-421: The registrar or other authorized person, and a corporate stamp or seal. Documentation usually included on registration certificates or papers includes: Registration papers are sometimes used as certificates of title. In some registries, breeders may apply for permission to crossbreed other breeds into the line to emphasize certain traits, to keep the breed from extinction or to alleviate problems caused in
3355-603: The registries maintained by the American Kennel Club as its Foundation Stock Service. In some cases, an open stud book may eventually become closed once the breed type is deemed to be fully set. In some agricultural breeds, an otherwise closed registry includes a grading up route for the incorporation of cross-bred animals. Often such incorporation is limited to females, with the progeny only being accepted as full pedigree animals after several generations of breeding to full-blood males. Such mechanisms may also allow
3416-412: The registry in order to update the ownership information, and in most cases, the registry will then issue a new set of papers listing the new owner as the proper owner of the horse. Genuine papers are often identifiable as containing the registered name and number of the individual animal and its date of birth, the name of the attesting organization, with the logo if there is one, the name and signature of
3477-410: The same color; there is no intermingling of white and dark hairs. Also, dun horses do not get lighter as they age. Horses that are a light cream color are also not grays. These are usually cremello, perlino or smoky cream horses, all colors produced by the action of the cream gene . However, if a gray parent passes on the gene, the hairs will turn white like any other gray. Another cream-colored dilution,
3538-563: The silver dapple gene (and do not have the gray gene) are born that color and it will not lighten. However, again, if one parent passes on the gray gene, the gray gene will again be dominant. Throughout history, both gray and white horses have been mythologized. As part of its legendary dimension, the gray horse in myth has been depicted with seven heads ( Uchaishravas ) or eight feet ( Sleipnir ), sometimes in groups or singly. There are also mythological tales of divinatory gray horses who prophesy or warn of danger. dapple From Misplaced Pages,
3599-422: The skin and eyes may be other colors if influenced by other factors such as white markings , certain white spotting patterns or dilution genes . The gray gene (G) is an autosomal dominant gene . In simple terms, a horse which has even one copy of the gray allele , regardless of other coat color genes present, will always become gray. This also means that all gray horses must have at least one gray parent. If
3660-400: The total number of characters and sometimes number of separate words that may compose the animal's registered name. They are often prohibited from using only punctuation or odd capitalization to create a unique name; names are often published in all capitals on registration papers. Breeders are generally not allowed to use any name that may be obscene or misleading, such as the word 'champion' in
3721-536: The word "registry" in their title used in the sense of "list"; these entities are not registers in the usual sense in that they do not maintain breeding records. In the dog world, listed animals are required to be de-sexed . The American Mixed Breed Obedience Registry is an example. Some equestrian organizations create a recording system for tracking the competition records of horses , but, though horses of any sex may be recorded, they also do not maintain breeding or progeny records. The United States Equestrian Federation
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