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Hairless Dog
A hairless dog is a dog with a genetic disposition for hairlessness and hair loss. There are two known types of genetic hairlessness, a dominant and a recessive type. The dominant type is caused by ectodermal dysplasia as a result of a mutation in the ''FOXI3'' autosomal gene. Dominant genes Dogs with dominant genes for hairlessness can pass their attributes to their offspring in natural conditions; that is, not under the control of humans. Therefore, it is possible that, in some parts of the world, groups of hairless dogs came into existence without human intervention. Later in history, people developed these groups into recognized breeds. Worldwide recognized breeds at this time are the Chinese Crested Dog, the Xoloitzcuintle (Mexican Hairless Dog), the Peruvian Inca Orchid and the American Hairless Terrier. The Argentine pila dog, the Bolivian Hairless Dog, and the Ecuadorian Hairless Dog are not registered hairless dog breeds. Other breeds that were said to have existed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Hairless Terrier
The American Hairless Terrier is a breed of companion dog from the United States that was developed from naturally hairless Rat Terriers. History In 1972 a completely hairless bitch pup was whelped in a litter of purebred Rat Terriers owned by Willie and Edwin Scott of Louisiana. Named Josephine, the bitch conformed to the Rat Terrier type in every way except her coat, so the Scotts bred from her and her first litter produced another hairless bitch pup, Gypsy. Neither bitch whelped another hairless pup in multiple litters until in 1981 at the age of nine Josephine produced two more hairless pups, a dog and bitch. In 1983 the dog, Snoopy, was mated to his hairless sisters and many more hairless pups were whelped, establishing the foundation stock for the new breed. Originally registered as a hairless variety of Rat Terriers, eventually the Scotts adopted a different breed name for their unique line and established a separate breed club, the American Hairless Terrier Association. In 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dog Anatomy
Dog anatomy comprises the anatomical studies of the visible parts of the body of a domestic dog. Details of structures vary tremendously from breed to breed, more than in any other animal species, wild or domesticated, as dogs are highly variable in height and weight. The smallest known adult dog was a Yorkshire Terrier that stood only at the shoulder, in length along the head and body, and weighed only . The heaviest dog was an English Mastiff named Zorba which weighed . The tallest known adult dog is a Great Dane that stands at the shoulder. Anatomy Source: Muscles The following is a list of the muscles in the dog, along with their origin, insertion, action and innervation. ''Extrinsic muscles of the thoracic limb and related structures:'' Descending superficial pectoral: originates on the first sternebrae and inserts on the greater tubercle of the humerus. It both adducts the limb and also prevents the limb from being abducted during weight bearing. It is innervated b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khala (dog Breed)
{{Disambiguation ...
Khala may refer to: * Khala, Hama, a village in Syria * Khala, a fictional religion in the StarCraft video game universe *Khala (dog breed), Bolivian dog breed See also * Kahla (other) Kahla is a town in Thuringia, Germany. Kahla may also refer to: * Kahla, Iran, a village in Iran * Kahla, Saudi Arabia, a village in southern Saudi Arabia * Elina Kahla (born 1960), Finnish philologist * Johann Alexander Hübler-Kahla (1902–1965) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conformation Show
A dog show is an event where dogs are exhibited. A conformation show, also referred to as a ''breed show'', is a kind of dog show in which a judge, familiar with a specific dog breed, evaluates individual purebred dogs for how well the dogs ''conform'' to the established breed type for their breed, as described in a breed's individual breed standard. Such shows are useful to breeders as a means of evaluating dogs for breeding purposes. A conformation championship from a recognised national kennel club is generally considered a reasonably objective indication of merit, as it indicates that the dog has been found to be a superior example of its breed by a number of different judges on a number of separate occasions. Many breeders consider championship a prerequisite for breeding. Conformation shows have been controversial, as critics argue that the shows encourage selective breeding of traits and lower genetic diversity, which reduces the health, happiness and longevity of the do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterozygous
Zygosity (the noun, zygote, is from the Greek "yoked," from "yoke") () is the degree to which both copies of a chromosome or gene have the same genetic sequence. In other words, it is the degree of similarity of the alleles in an organism. Most eukaryotes have two matching sets of chromosomes; that is, they are diploid. Diploid organisms have the same loci on each of their two sets of homologous chromosomes except that the sequences at these loci may differ between the two chromosomes in a matching pair and that a few chromosomes may be mismatched as part of a chromosomal sex-determination system. If both alleles of a diploid organism are the same, the organism is homozygous at that locus. If they are different, the organism is heterozygous at that locus. If one allele is missing, it is hemizygous, and, if both alleles are missing, it is nullizygous. The DNA sequence of a gene often varies from one individual to another. These gene variants are called alleles. While some gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homozygous
Zygosity (the noun, zygote, is from the Greek "yoked," from "yoke") () is the degree to which both copies of a chromosome or gene have the same genetic sequence. In other words, it is the degree of similarity of the alleles in an organism. Most eukaryotes have two matching sets of chromosomes; that is, they are diploid. Diploid organisms have the same loci on each of their two sets of homologous chromosomes except that the sequences at these loci may differ between the two chromosomes in a matching pair and that a few chromosomes may be mismatched as part of a chromosomal sex-determination system. If both alleles of a diploid organism are the same, the organism is homozygous at that locus. If they are different, the organism is heterozygous at that locus. If one allele is missing, it is hemizygous, and, if both alleles are missing, it is nullizygous. The DNA sequence of a gene often varies from one individual to another. These gene variants are called alleles. While some gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African Hairless Dog
African hairless dogs, also known as Abyssinian sand terriers, were hairless dogs from Africa. It is unknown if any examples still exist. This breed of dog, also known as the African Sand Dog, is known for being “semi-wild” meaning they tend to follow rather than live with the cattle breeders; though they occasionally serve as valuable companions on bunting trips. Among the names of this “breed” are the words Egyptian, Abyssinian, and Zulu which simply suggests that the genes for hairlessness have appeared independently in multiple areas of the continent as a cooling system in high heat. A number of early European accounts from Africa mention a small hairless dog. It was described as fast moving with a short, sharp bark, and it was said to be either sandy-coloured or blue-black. Contemporary reports indicated it may or may not have had a crest of stiff hair on its head and a tuft on its tail, although photographs fail to show any hair. Three examples were brought to Britai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentine Pila Dog
The Argentine Pila ( es, El perro pila) is an Argentine breed of hairless dog. It is recognised by the Asociación Canina Argentina. It is one of a small number of hairless dog breeds; others include the African hairless dog, the American Hairless Terrier, the Chinese Crested Dog, the Hairless Khala of Bolivia, the Peruvian Inca Orchid and the Xoloitzcuintle or Mexican Hairless. It is closely related to other South American hairless breeds, all of which were originally considered a single breed. It is estimated that approximately 1,700 of these dogs are in Argentina; they are predominantly found in the Salta province Salta () is a province of Argentina, located in the northwest of the country. Neighboring provinces are from the east clockwise Formosa, Chaco, Santiago del Estero, Tucumán and Catamarca. It also surrounds Jujuy. To the north it borders Boliv ... in the north of the country. References Hairless dogs Dog breeds originating in Argentina {{dog-st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peruvian Hairless Dog
The Peruvian Hairless Dog, Peruvian viringo, naked dog, or Chimú dog is one of several breeds of hairless dog. It is native to Peru and it is usually raised as a pet. It has been officially recognized as part of Peru's cultural heritage. Appearance According to the FCI breed standard, the most important aspect of its appearance is its hairlessness. The dog may have short hair on top of its head, on its feet, and on the tip of its tail. In Peru, breeders tend to prefer completely hairless dogs. The color of skin can be chocolate-brown, elephant-grey, copper, or mottled. They can be totally one color or one color with tongue pink spots. Albinism is not accepted. The eye color is linked to the skin color. It is always brown, but dogs with light colors can have clearer eyes than darker-skinned dogs. Peruvian Hairless Dogs come in three sizes: *Small 25 – 40 cm (10 – 16 inches) *Medium 40 – 50 cm (16 – 20 inches) *Large 50 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xoloitzcuintle
The Xoloitzcuintle (or Xoloitzquintle, Xoloitzcuintli, or Xolo) is one of several breeds of hairless dog. It is found in standard, intermediate, and miniature sizes. The Xolo also comes in a coated variety, totally covered in fur. Coated and hairless can be born in the same litter as a result of the same combination of genes. The hairless variant is known as the Perro pelón mexicano or Mexican hairless dog. It is characterized by its duality, wrinkles, and List of dental abnormalities associated with cutaneous conditions, dental abnormalities, along with a primitive temper. In Nahuatl, from which its name originates, it is ''xōlōitzcuintli'' (singular) and ''xōlōitzcuintin'' (plural).''Nahuatl Dictionary.'' (1997). Wired Humanities Project. University of Oregon. Retrieved September 1, 2012, frolink/ref> The name comes from the god ''Xolotl'' that according to ancient narratives is its creator and ''itzcuīntli'' , meaning 'dog' in Nahuatl language. History Ceramic sculpture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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