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The Himalayan rabbit is a rare medium-sized breed of rabbit easily mistaken for the Californian rabbit. [1] The body is white with colored points, recognized colors are black, blue, chocolate and lilac.
They are one of the oldest and calmest breeds. Adult Himalayans weigh 2.5 to 4.5 pounds (1.1 to 2.0 kg), with an ideal weight of 3.5 lb (1.6 kg). They are the only 'cylindrical' (shown posed in a stretched-out manner) rabbit breed. The history of the breed is partially a mystery, as there are no definite records that clearly state where the breed may have originated. Some speculate that their origin may be in the Far East as opposed to the Himalayas, as their name suggests.
When Himalayans are raised in cold climates, they can exhibit black coloration of their coats, making them a phenocopy of the black rabbit.
Himalayans are also known as the Chinese, Egyptian, and Black-nose. [2] They are posed stretched out, and their body is to be 3.5 head lengths. [3] They have fine bone and a skinny body, and, unlike many other breeds, were never raised primarily for meat. The breed's main purpose is for show, but in its past, it was raised for its white pelt. Also, they are the only rabbit breed that commonly has an extra set of nipples. They are the ancestors of Californians, one of the most common meat rabbits.
Himalayan rabbits were one of the first breeds of rabbits, dating back thousands of years and although their origin is unknown they have been traced to Asia and the Middle East.[ citation needed ] It is unlikely, however, that they came from the Himalayan mountain region as their name suggests.
While it may be an old breed, Himalayans are relatively new in showing circles. "A description of the Himalayan rabbit was first published in 1857 in Europe and that by the end of the 19th century Himalayans were being raised for show in Great Britain". [2] [4] The Himalayan was finally introduced to the United States during the Belgian hare boom that began in 1898, during which the popularity of domestic rabbits increased dramatically. By the time the boom ended in 1901, Himalayan rabbits had begun to pop up at rabbit shows around the country. The pelt, which greatly resembles that of ermine, was quickly popular with rabbit breeders who would harvest the valuable fur to sell. Himalayan rabbits were often made into fur coats, sometimes masquerading as authentic ermine.[ citation needed ]
The original variety was the black Himalayan, and the blue Himalayan was created later. The chocolate and lilac varieties were made by different crosses depending on where they originated. American chocolate Himalayans were bred by Ron Smelt of California by mixing chocolate English spots to Himalayans. [5] The lilacs were made by mixing the chocolate Himalayans the blues, but to create a color unique enough to get recognized as its own color (many early lilacs looked like light blues) lilac mini rexes were mixed in (these lines were mostly destroyed after the color was accepted).
The Himalayan plays an important part in many other breed's histories, especially the Californian rabbits, [6] which looks like a commercial type rabbit with Himalayan markings. The Californian was made by crossing Himalayans with New Zealand's and a few other breeds (some Californian breeders[ who? ] say it is just Himalayan and New Zealand, while others[ who? ] say the Standard Chinchilla was mixed in as well). The Californian was added to many other breeds (like Champagne d'Argents and some lines of Cinnamon) to improve body type, so Himalayan marked sports pop up sometimes.
The Himalayan rabbit is well known for its markings, which are similar to the Himalayan cats'. They have dark ears, front feet (socks), hind feet (boots), a dark Scut, and a dark spot on nose. The markings change with age and environment. Cold weather may darken markings, enlarge markings, and also add markings (called Smut) around the eyes, genitals (vent smut), or other white parts of the body. Eye and genital markings are not a disqualification because Smut is not on the usable portion of the pelt. If the Smut spreads onto the usable portion of the pelt, such as the belly or on the pin bones, it is a disqualification. Warmer weather may lighten markings, shrink markings, and cause white hairs in markings (known as "frosting"). In extremely warm weather, a Himalayan may even develop light or white toenails. For toenails to noticeably change, the rabbit would be greatly suffering due to the high heat intolerance of the breed.
Chocolate and lilac Himalayans often have bigger markings than blacks and blues and are usually more likely to develop disqualifying markings, known as "smut" – although if the line has mixed variety lineage there will be great fluctuation within the specimens. Himalayans may develop smut after just ten minutes of contact with cold objects. Travel cages must always be stored in a warm place such as a house or attached shed that stays at 60 °F (16 °C) or higher, otherwise, cages and carriers will need to be warmed before use.
Himalayan kits are especially sensitive to temperature. Most babies in the warmth of the nest will look the same as albino babies. The reason for this is that Himalayans can only produce eumelanin under a certain temperature and they cannot produce pheomelanin at all. Kits will get their markings at the age they become more independent from their mother and littermates. If a nest gets too cold or a baby falls out, they will get dark bands on their fur. This varies from looking to off-white to looking chinchilla-colored, and it causes confusion among many novice breeders. Because of their constantly changing colors, most Himalayan breeders do not look at markings as a factor when making breeding plans. A baby who was chilled in the nest box is often called "frosty," which is not to be confused with frosted pearl. Experienced breeders may take young kits out of the nest box, keeping them at about 70 or 75 °F (21 or 24 °C), until they become frosty so that once the kit matures and sheds the frosty coat, their markings will be much darker and shinier.
Himalayans will always have pink irises, these are not to be confused with red eyes, because while both can be present in rabbits, a pure Himalayan will not have traditionally red eyes. Himalayan marked rabbits without pink eyes are usually misidentified sable points or of mixed heritage.
Himalayan rabbits are known for having a double copy of the "ch" gene and a mutated albinism gene which causes the differences in eumelanin and pheomelanin production. The mutation is what creates the specific markings.
Himalayan rabbits have four phenotypes: Black, Blue, Chocolate and Lilac.
Black is the original and most dominant color, represented by a "B", Chocolate is a color mutation and is represented as a "b" and Black will always be dominant over Chocolate. These two colors are known as full saturation.
The dilute gene was introduced into the breed through outcrossing with other rabbit breeds to add Blue and Lilac rabbits. The dilute gene can occur naturally in Himalayans when the dilute gene mutates in black Himalayans and produces a blue, however, most blue Himalayans now have Netherland dwarf or mini rex influence as a result of breeding for dilutes. Dilute is recessive so you will have fewer dilute kittens in a litter produced by heterozygous parents. Black is the most common because it is the most dominant, Chocolate and blue are the next common because they both carry a dominant and a recessive trait, Lilac is the rarest as the result of production by two recessive traits. If breeding specifically for color, it is possible to fine-tune offspring colors by breeding within specific lines.
The Himalayan gene ("ch") has been bred into many other breeds, but those breeds lack marking modifiers which tends to create smaller, lighter markings.
Cuniculture is the agricultural practice of breeding and raising domestic rabbits as livestock for their meat, fur, or wool. Cuniculture is also employed by rabbit fanciers and hobbyists in the development and betterment of rabbit breeds and the exhibition of those efforts. Scientists practice cuniculture in the use and management of rabbits as model organisms in research. Cuniculture has been practiced all over the world since at least the 5th century.
Palomino is a genetic color in horses, consisting of a gold coat and white mane and tail; the degree of whiteness can vary from bright white to yellow. The palomino color derived from the inter-breeding of Spanish horses with those from the United States. Genetically, the palomino color is created by a single allele of a dilution gene called the cream gene working on a "red" (chestnut) base coat. Palomino is created by a genetic mechanism of incomplete dominance, hence it is not considered true-breeding. However, most color breed registries that record palomino horses were founded before equine coat color genetics were understood as well as they are today, therefore the standard definition of a palomino is based on the visible coat color, not heritability nor the underlying presence of the dilution gene.
The Angora rabbit, which is one of the oldest types of domestic rabbit, is bred for the long fibers of its coat, known as Angora wool, which are gathered by shearing, combing or plucking. Because rabbits do not possess the same allergy-causing qualities as many other animals, their wool is an important alternative. There are at least 11 distinct breeds of Angora rabbit, four of which are currently recognized by the American Rabbit Breeders Association (ARBA): English Angora, French Angora, Giant Angora and Satin Angora. Others include German Angora, Chinese Angora, Finnish Angora, Japanese Angora, Korean Angora, Russian Angora, St Lucian Angora and Swiss Angora.
A dilution gene is any one of a number of genes that act to create a lighter coat color in living creatures. There are many examples of such genes:
Cat coat genetics determine the coloration, pattern, length, and texture of feline fur. The variations among cat coats are physical properties and should not be confused with cat breeds. A cat may display the coat of a certain breed without actually being that breed. For example, a Neva Masquerade could wear point coloration, the stereotypical coat of a Siamese.
Bay is a hair coat color of horses, characterized by a reddish-brown or brown body color with a black point coloration on the mane, tail, ear edges, and lower legs. Bay is one of the most common coat colors in many horse breeds.
At right is displayed the color traditionally called liver.
Point coloration is animal coat coloration with a pale body and relatively darker extremities, i.e. the face, ears, feet, tail, and scrotum. It is most recognized as the coloration of Siamese and related breeds of cat, but can be found in dogs, rabbits, rats, sheep, guinea pigs and horses as well.
The cream gene is responsible for a number of horse coat colors. Horses that have the cream gene in addition to a base coat color that is chestnut will become palomino if they are heterozygous, having one copy of the cream gene, or cremello, if they are homozygous. Similarly, horses with a bay base coat and the cream gene will be buckskin or perlino. A black base coat with the cream gene becomes the not-always-recognized smoky black or a smoky cream. Cream horses, even those with blue eyes, are not white horses. Dilution coloring is also not related to any of the white spotting patterns.
Equine coat color genetics determine a horse's coat color. Many colors are possible, but all variations are produced by changes in only a few genes. Bay is the most common color of horse, followed by black and chestnut. A change at the agouti locus is capable of turning bay to black, while a mutation at the extension locus can turn bay or black to chestnut.
The Californian, also known as the California White, is a breed of domestic rabbit originally developed for the fur and meat industries by George S. West of Lynwood, California, starting in 1923. West maintained a herd of 300 genetically pure New Zealand Whites, which he began crossing with Standard Chinchilla rabbits for their dense coat, and Himalayan rabbits. This new breed, named for the state of its origin, was first shown in 1928 and a standard was accepted by the American Rabbit Breeders Association (ARBA) in 1939.
Chestnut is a hair coat color of horses consisting of a reddish-to-brown coat with a mane and tail the same or lighter in color than the coat. Chestnut is characterized by the absolute absence of true black hairs. It is one of the most common horse coat colors, seen in almost every breed of horse.
Mini Rex is a breed of domestic rabbit that was created in 1984 in Florida by the late Monna Berryhill of Texas. The Rex mutation, derived in France in the 19th century, is recessive and causes the hair to protrude outwards from the body, instead of lying flat, and the guard hairs to be shortened to the length of the undercoat, or a bit longer.
The genetic basis of coat colour in the Labrador Retriever has been found to depend on several distinct genes. The interplay among these genes is used as an example of epistasis.
Plush Lop is a breed of domestic rabbit with two varieties: Miniature and Standard. There is also a Canadian Plush Lop breed in development. Similar in appearance, the Velveteen Lop breed is also in development. Miniature Plush Lops were the first to be developed. Devie D'anniballe began creating this breed in 1995 in the United States. She succeeded in developing them by combining the previously existing breeds of Holland Lop, Mini Rex, and Mini Lop. Her aim was to create the perfect pet by retaining the good qualities of these breeds, while "breeding out" all the problems existing in these breeds.
The Tan rabbit is a small fancy breed of rabbit shown throughout the world. While originally from England, in recent years it has gained popularity in the United States. Tans come in four varieties: black, blue, chocolate and lilac. Full grown Tans weigh 4-6 pounds.
The Harlequin is a colourful breed of rabbit originating from France. It is a breed based around the coloration and markings, rather than fur and body type. The ideal weight of a standard Harlequin is 6.5-9.5 lb (2–3 kg), with bucks (males) weighing 6.5-9 lb, and does (females) weighing 7-9.5 lb.
Dogs have a wide range of coat colors, patterns, textures and lengths. Dog coat color is governed by how genes are passed from dogs to their puppies and how those genes are expressed in each dog. Dogs have about 19,000 genes in their genome but only a handful affect the physical variations in their coats. Most genes come in pairs, one being from the dog's mother and one being from its father. Genes of interest have more than one expression of an allele. Usually only one, or a small number of alleles exist for each gene. In any one gene locus a dog will either be homozygous where the gene is made of two identical alleles or heterozygous where the gene is made of two different alleles.