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Yorkshire Terrier
The Yorkshire Terrier (often shortened as Yorkie) is one of the smallest dog breeds of the terrier type and indeed of any dog breed. The breed developed during the 19th century in Yorkshire, England."Get to Know the Yorkshire , 'The American Kennel Club', retrieved 19 May 2014 Ideally its maximum size is . A popular , the Yorkshire Terrier has also been part of the development of other breeds, such as the . Most have a black and tan coat, but they are also known to have a silver-grey or a blonde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Kennel Club
The Kennel Club ("KC") is the official kennel club of the United Kingdom. It is the oldest recognised kennel club in the world. Its role is to oversee various canine activities including dog shows, dog agility and working trials. It also operates the national register of pedigree dogs in the United Kingdom and acts as a lobby group on issues involving dogs in the UK. Its headquarters are on Clarges Street in Mayfair, London, with business offices in Aylesbury. The Kennel Club registration system divides dogs into seven breed groups. The Kennel Club Groups are: Hound group, Working group, Terrier group, Gundog group, Pastoral group, Utility group and Toy group. As of 2021, The Kennel Club recognised 222 breeds of dog. The Kennel Club licenses dog shows throughout the UK, but the only dog show it actually runs is Crufts. The show has been held since 1928 and attracts competitors from all over the world. It is held every March at the NEC, Birmingham, and includes the less for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stud Dog
Dog breeding is the practice of mating selected dogs with the intention of maintaining or producing specific qualities and characteristics. When dogs reproduce without such human intervention, their offspring's characteristics are determined by natural selection, while "dog breeding" refers specifically to the artificial selection of dogs, in which dogs are intentionally bred by their owners. Breeding relies on the science of genetics, hence a breeder who is knowledgeable on canine genetics, health, and the intended purpose of the dogs attempts to breed suitable dogs. Terminology The female parent of puppies is referred to as the ''dam'' and the male parent is referred to as the ''sire''. A litter consists of the puppies born from the same pregnancy. A ''whelp'' is a newborn puppy and giving birth to dogs is called ''whelping''. Dogs commonly give birth in a ''whelping box'', a simple box or pen provided to the dam to help shelter and contain the puppies. A person who intentio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dander
Dander is material shed from the body of humans and other animals that have fur, hair, or feathers. The term is similar to dandruff, when an excess of flakes becomes visible. Skin flakes that come off the main body of an animal are dander, while the flakes of skin called dandruff come from the scalp and are composed of epithelial skin cells. The surface layer of mammalian skin is called the stratum corneum, which is shed as part of normal skin replacement. Dander is microscopic, and can be transported through the air in house dust, where it forms the diet of the dust mites. Through the air, dander can enter the mucous membranes in the nose and lungs, causing allergies in susceptible individuals, largely through the mechanism of allergy to proteins in the bodies of the dust mites that live on dander. Dander builds up in carpets and in mattresses and pillows, so smooth surfaces predispose to an environment where levels of dander can be controlled more easily. More pet dander is sl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypoallergenic Dog Breed
A hypoallergenic dog breed is a dog breed (or crossbreed) that is purportedly more compatible with allergic people than are other breeds. However, prominent allergen researchers have determined that there is no basis to the claims that certain breeds are hypoallergenic and, while allergen levels vary among individual dogs, the breed is not a significant factor. The myth Though some studies suggest the possible existence of hypoallergenic dog breeds, there is too much variability to conclude that such a breed exists. According to researchers, claims about the existence of hypoallergenic dog breeds may have been fueled by unsubstantiated articles on the internet. The significant allergens are proteins found in the dog's saliva and dander. Some studies have suggested that the production of the allergen, and therefore human allergenic reaction, varies by breed, yet more recent scientific findings indicate that there are no significant differences between breeds in the generation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coat (dog)
The coat of the domestic dog refers to the hair that covers its body. Dogs demonstrate a wide range of coat colors, patterns, textures, and lengths. As with other mammals, a dog's fur has many uses, including thermoregulation and protection from cuts or scratches; furthermore, a dog's coat plays an important role in the showing of purebred dogs. Breed standards often include a detailed description of the nature and attributes of that breed's ideal coat. A dog's coat is composed of two layers: a top coat of stiff guard hairs that help repel water and shield from dirt, and an undercoat of soft down hairs, to serve as insulation. Dogs with both under coat and top coat are said to have a ''double coat''. Dogs with a ''single coat'' have a coat composed solely of guard hairs, with little or no downy undercoat. The terms fur and hair are often used interchangeably when describing a dog's coat, however in general, a double coat, like that of the Newfoundland and most livestock g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Defect
A genetic disorder is a health problem caused by one or more abnormalities in the genome. It can be caused by a mutation in a single gene (monogenic) or multiple genes (polygenic) or by a chromosomal abnormality. Although polygenic disorders are the most common, the term is mostly used when discussing disorders with a single genetic cause, either in a gene or chromosome. The mutation responsible can occur spontaneously before embryonic development (a ''de novo'' mutation), or it can be inherited from two parents who are carriers of a faulty gene (autosomal recessive inheritance) or from a parent with the disorder (autosomal dominant inheritance). When the genetic disorder is inherited from one or both parents, it is also classified as a hereditary disease. Some disorders are caused by a mutation on the X chromosome and have X-linked inheritance. Very few disorders are inherited on the Y chromosome or mitochondrial DNA (due to their size). There are well over 6,000 known genet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dog Coat Genetics
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 (or version) 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 (one from its mother and one its father) or heterozygous where the gene is made of two different alleles (one inherited from each parent). To understand why a dog’s coat looks the way it does based on its genes requires an understanding of a handful of genes and their alleles which affect the dog's coat. For example, to find how a black and white g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gene
In biology, the word gene (from , ; "...Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a basic unit of heredity and the molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional RNA. There are two types of molecular genes: protein-coding genes and noncoding genes. During gene expression, the DNA is first copied into RNA. The RNA can be directly functional or be the intermediate template for a protein that performs a function. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. These genes make up different DNA sequences called genotypes. Genotypes along with environmental and developmental factors determine what the phenotypes will be. Most biological traits are under the influence of polygenes (many different genes) as well as gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recessive
In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and the second recessive. This state of having two different variants of the same gene on each chromosome is originally caused by a mutation in one of the genes, either new (''de novo'') or inherited. The terms autosomal dominant or autosomal recessive are used to describe gene variants on non-sex chromosomes ( autosomes) and their associated traits, while those on sex chromosomes (allosomes) are termed X-linked dominant, X-linked recessive or Y-linked; these have an inheritance and presentation pattern that depends on the sex of both the parent and the child (see Sex linkage). Since there is only one copy of the Y chromosome, Y-linked traits cannot be dominant or recessive. Additionally, there are other forms of dominance such as incomplete d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypoallergenic
Hypoallergenic, meaning "below average" or "slightly" allergenic, is a term meaning that something (usually cosmetics, pets, textiles, food, etc.) causes fewer allergic reactions. The term was first used in 1953 in an advertising campaign for cosmetics or perhaps as early as 1940. The term is also commonly applied to pet breeds which are claimed to produce fewer allergens than other breeds of the same species, due to some combination of their coat type, absence of fur, or absence of a gene that produces a certain protein. All breeds still produce allergens and a 2011 study failed to find a difference in allergen concentrations in homes with dogs of "hypoallergenic breeds" and other breeds. Certifications and definitions In some countries, there are allergy interest groups that provide manufacturers with a certification procedure including tests that ensure a product is unlikely to cause an allergic reaction, but such products are usually described and labeled using other but sim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
War Dog
Dogs in warfare have a very long history starting in ancient times. From being trained in combat, to their use as scouts, sentries, messengers, mercy dogs, and trackers, their uses have been varied and some continue to exist in modern military usage. History War dogs were used by the Egyptians, Greeks, Persians, Sarmatians, Baganda, Alans, Slavs, Britons, and Romans. Among the Greeks and Romans, dogs served most often as sentries or patrols, though they were sometimes taken into battle. The earliest use of war dogs in a battle recorded in classical sources was by Alyattes of Lydia against the Cimmerians around 600 BC. The Lydian dogs killed some invaders and routed others. At the Battle of Pelusium (525 BC), Cambyses II deployed dogs, cats, and other animals held sacred by the Egyptians. By putting these animals in the front lines, he was supposedly able to get the Egyptians to cease using their projectile weaponry. During the Late Antiquity, Attila the Hun used la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smoky (dog)
Smoky (c. 1943 – 21 February 1957), a Yorkshire Terrier, was a famous war dog who served in World War II. She weighed only and stood tall. Smoky is credited with beginning a renewal of interest in the once-obscure Yorkshire Terrier breed. Biography Discovery and purchase In February 1944, Smoky was found by an American soldier in an abandoned foxhole in the New Guinea jungle. She was already a young adult Yorkie (fully grown). The soldiers initially thought the small dog belonged to the Japanese, but after taking her to a nearby prisoner-of-war camp they realized she did not understand commands in Japanese or English. Another GI then sold Smoky to Corporal William A. Wynne of Cleveland, Ohio, for two Australian pounds (equal to $6.44 at that time)—the price paid to the seller so he could return to his poker game.Wynne, William A. "Yorkie Doodle Dandy: 4 Pound Yorkshire Terrier Hero of World War II", Index. Retrieved from on 2007-02-15.Wynne, Bill, "Smoky 'Cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
