Worldwide there are more than 800 breeds (dog breed) recognized by kennel clubs in the different country. The term "pure breed of dog" is actually valid for a number of generations of dogs, because all dog breeds were derived from mixed breeds.
Some small breeds are mainly the result of the evolution of there more than 10,000 years and is as old as history of dog domestication. But most purebred dogs is precisely the product of deliberate artificial selection. Different breeds of dogs produced by artificial selection has its own characteristics that quite typical for the race. Consequently, two different dog breeds could very different, although both are the same animal. Although the dog and its appearance looks very different, dogs can still recognize other dogs from other animals.
The definition of dog breeds (dog breeds) is highly controversial. Depending on the total founding population, closed gene pool who have problems with inbreeding or founder effect. The dog breeders (kennel) are increasingly aware of the importance of population genetics and maintain pools of various genes. Medical examination and new DNA tests can help avoid puppies with health problems and serious behavior.
standardsSome dog breeds organization has set for a race (races) are looser. A dog may already be included as members of the race when he had 75% of its parentage is of that breed. The same considerations regarding the standard of purebred dogs entered in dog shows. thoroughbred Dog who won a dog show sometimes not spared the effects of genetic disorders due to founders and wedding antarkerabat However, this problem is not limited only to purebred dogs and could also apply to the mixed race population . Advantage maintains a dog breed is the behavior and physical form that can be expected to be more specific. Labrador Retriever Dogs generally love to play with water, while Beagle certainly very interested in the different odors. Instead, physical and behavior in unpredictable bastard form and sometimes quite unique.
In February 04, the Canine Studies Institute in Aurora, Ohio classify dogs in 10 categories.
Dog mix or mongrel dog is a dog that is not part of a particular breed, and is a mixture of two or more races in different percentages. Mixed-breed (mutt), or a dog without the origins of the pure race is no better or worse than purebred dogs to be used as companions, pets, working dogs, or competing in dog sports. Mongrel sometimes deliberately, for example, a dog that is a mix Cockapoo Cocker Spaniel with a miniature poodle. Such deliberate crosses the puppy should produce more superior as a result of heterosis. In addition, puppies may have other desired characteristics, but the loss of one or more characteristics that are the parent property against another as the temperament or the color of the fur. However, without genetic testing cross can sometimes reduce genetic damage that had both parents. Deliberate crossing two or more breeds of dogs can also produce new breeds of dogs.
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