Durable dogs or designer dogs are dogs that are deliberately bred from two or more recognized dog breeds and not from dogs without ancient racial ancestors, but have not been artificially grown for each, each sufficient to breed properly and be recognized as a descendant in its own right.
Video Dog crossbreed
Initial blend
Some unofficial crossbreed types originated in the 14th century or earlier, such as lurchers or longdogs.
Maps Dog crossbreed
Designer dog
The EncyclopÃÆ'Â|dia Britannica traces the term "designer dog" to the end of the 20th century, when breeders begin to cross pure poodles with other breeds of breeds to get dogs with a poodle hypoallergenic coat, along with the desired characteristics of other breeds.
The designated crosshead of the "designer dog" is that the resulting puppies are called by the word portmanteau consisting of syllables (or sounds) of the breeds of two original race parents, such as Schnoodle ( Schn auzer and p oodle cross). or Shepsky (Silhouette German/Siberian Husky). Other race breeds are crossed to provide designer dogs described with endless labels such as Puggle ( Pug and Custom bait ble ). There are even complex crosses (with many descendants in recent ancestors) labeled in this way, such as the German Chusky Dog (German Shepherd Dog, Husky, Chow Chow).
Like children in the family, the percentage of designer dogs with the same ancestral descent will look similar to each other, although cross-breeding does not produce phenotypic uniforms as pure breeding races. Often puppies in the same trash will look very different.
Another distinctive feature of designer dogs is that they are usually raised as friends and pets. Workers' dogs and hunters deliberately crossed for specific work purposes are generally not given the name portmanteau; they are most commonly referred to as the type (not breed) names, such as Eurohounds (dog sled race) or Lurchers (hunting dogs). These dogs can be considered only as descendants of a cross, not as designer animals, because appearance is not the main reason for them to be raised. The exception to this is Labradoodle, which despite having the name Portmanteau, is often used as a Guide or Help dog and also a popular family dog.
Although designer dogs are often chosen by the owners because of their novelty, reputable breeders sometimes use crossbreeding to reduce the incidence of certain breed problems found in breeds, while retaining their more attractive properties. Jon Mooallem in The New York Times wrote, "Given some 350 congenital abnormalities that contaminate the dog's genome, crossing two pure breeds and expanding their genes can be a 'phenomenally good idea', according to a dog geneticist --If it is done seriously. "Cross-breeding has not been well studied in dogs, although it is for livestock.Heritability of the desired properties raised for (such as the hypoallergenic coat) needs to be known:" Heritability is the proportion of measurable differences observed between animals for certain traits caused by genetics ( and can be passed on to the next generation.) "In addition, the purpose of cross breeding of dogs may be more difficult to define than the intersection of livestock: a good temperament may be more difficult to define and measure than the height of a calf's weight.
Designer dog breeders are often criticized for being more interested in profitable dog production than in dog health and welfare. Wally Conron commented on the popularity of the cross after the introduction of Labradoodle: "Do breeders interfere to inspect males and their prostitutes because of a hereditary error, or are they just caught in giving to customers who are hungry next status symbols?"
Dog dogs puppies sometimes carry a higher price than the offspring from which they were raised.
Designer dog fans respond that all modern dog breeds are created from previous breeds and breeds of dogs through the same selective breeding breeds used to create designer dogs. The Toy Poodle is raised in size from a larger poodle, most likely by crossing with a variety of very small Bichon types, such as Maltese and Havanese. Most modern breeds have ancestors that include many different breeds and breeds of older dogs; see individual breed articles for details on the origin of each breed.
The health of crosses dogs depends on their offspring from healthy parents. Breeders who choose their breeding stock for cost-effectiveness and who neglect health testing for the same reason will not produce healthy and reliable puppies as raised by more rigorous breeders. However, the study of longevity in dogs has found some advantages for crosses compared to dog breeds. "There is a significant correlation between weight and long life.Cross life is longer than average but some pure breeds live longer than cross breeds, especially Jack Russell, miniature poodle and whippet" (thus only small breeds and toys, such as which are expected). It is generally believed that crossbreeding dogs "have a much lower chance of showing the disorders common to parental breeds.Their genetic health will be much higher."
Many designer dog breeders take advantage of the fact that people are impressed with pets that they believe offer them high social status, as do other "designers". "It's human nature to aspire to have something a little different, a bit of luxury or a short supply."
Genetics
Cross-breeding to take advantage of the increased likelihood that a recessive destructive allele will only be inherited from one parent, and therefore not expressed in the hereditary phenotype, only one breeder strategy can be used to reduce the incidence of genetic defects. Knowing the incidence of the disease in the breed, and the individual's genetic history, is ultimately important in dog breeding. Having genetically tested parental dogs for known disadvantages in their breeds (or breeds, in the case of mixed breeds) can do as much, or more, than simply choose individuals different from the functional reproductive tract. Genetic health must be approached from many angles.
Due to some dominant traits, cross-breeds tend to exhibit some physical characteristics more often than others. Border Collies and some Spaniels, for example, often produce offspring with similar coats and ears. Children of German Shepherd descent often have a typical Shepherd's face. But all crossbreeding dogs will vary where the characteristics of the original race parents they inherit, and may look very different from each other, even in the same puppy poop.
Registration and introduction
Crossbreeding dogs are not recognized by registries of traditional breeds, although both parents are listed as pure race. Breed associations such as AKC, UKC, and CKC, do not recognize designer breeds as dog breeds.
If race dogs were raised together for some period of time, and their breeding is well documented, they can eventually be considered a new breed of dog by the main kennel club (an example of a recent cross breed recognized by all major kennel clubs is Cesky Terrier ). New breeds of dogs must have breeding clubs that will document the ancestors of each individual member who breed from the original founding dog of this breed; when clubs where club kennel breed want to join are satisfied that the dogs are descendants, they will receive and register the dogs from that breed. Each kennel club has its own rules on how to document a new type. Some small registries and internet registration businesses will register dogs as any breeds whose owners choose with little or no documentation; some even allow breeders or owners to make the name "designer breed" for their pets.
Some crossbreeding dogs, created by breeding two different breeds of dog breeds, may have the advantage of heterosis, or the power of crosses. This advantage can be further diluted when two crosses are cultured in an attempt to create a breed, narrowing the gene pool. The best way to continue to harness the power of crosses is from breeding dogs with genetic diversity.
Portmanteau name
With the long-standing popularity of cockapoo labels, used at least since 1960 and built by combining elements from two contributing breeds (Cocker Spaniel/Poodle), it has become quite common to find crossed dogs with labels that are also found by portmanteau. The tendency to use such labels in a funny way dates back at least to Queen Elizabeth II of the English dorgis (Dachshund/Corgi). None of these have been recognized by a large registry as a breed of breeds. However, in 2006, the words portmanteau cockapoo and Labradoodle were found in several dictionaries. Such lively label names are often found in sales ads, or on websites that allow sellers to create their own names for crossed crossed puppies. These terms are only descriptive and rarely consistent.
Among the trendy mulattoes are Labradoodles and Cockapoos, each of which has their own association and affinity group. Poodle crossbreed poodle and also popular.
In 2012, a new designer cross appeared called Pomsky, which is the cross of the Pomeranian and Siberian Husky, and became popular and sought after. The cross also has its own fancier association. This blend is now a popular designer cross because of its miniature shrill appearance.
It is important to note that this mixture is not a legally recognized breed of dog, but it is mixed.
See also
- Cross designer
- Dog
- Kyi-Leo
- List of dog crossbreeds (with other Canis species: wolves, coyotes, wolves, etc.)
- Mountain dog
- Poodle crossbreed
- Children's factory
- Purebred (dog)
References
External links
- The New York Times article "The Modern Kennel Conundrum"
- Lots of Ado About Poo
- The Independent on Sunday's article "Hunted Out: Feather and Hatred in the Dog World"
- What You Need To Know About Pomsky Hybrid Dogs
Source of the article : Wikipedia
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