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PINOY PET FINDER - BREED SPECIFIC |
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| Breed Specific |
A breed is a domesticated subspecies
or infrasubspecies of an animal. For a type to be recognised as a breed, there should be a
viable true-breeding population. The term may also be used as a verb, meaning action intended
to produce offspring. The breeder makes it his or her trade to engage in plant breeding and the
maintenance and creation of breeds of animals suitable for domestication.
A breed has no close analogy for domesticated plants. An important difference is
that plants are commonly propagated by striking or grafting cuttings: there is no
corresponding technique for animals. Cloning may change this if it becomes more available.
A breed should also be distinguished from a strain, which is simply the descendants of a
single significant individual, and which in domesticated animals is also known as a bloodline.
A strain may not remain entirely within a breed, nor is a breed necessarily composed of a single
strain.
Dogs have been selectively bred for thousands of years, sometimes by inbreeding dogs from the same
ancestral lines, sometimes by mixing dogs from very different lines. The process continues today,
resulting in a tremendous variety of dog breeds.
The following list uses a wide interpretation of "breed". Breeds listed here may be traditional
breeds with long histories as registered breeds, rare breeds with their own registries, or new breeds
that may still be under development. Please see individual articles for more information. |
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| DOG BREED |
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A dog breed is a
group of dogs that have very similar or nearly identical characteristics of appearance or behavior or, usually,
both, primarily because they come from a select set of ancestors who had the same characteristics. Dogs have been
selectively bred for specific characteristics for thousands of years. Initially the selections would have centered
on domestication and useful behavior such as hunting ability. Later, dogs were also selected for attractive and
distinctive forms, resulting in a vast variety of types.
Many traditional dog breeds recognized by the main breed registries are said to be "purebred". Only individuals
whose parentage consists only of other purebred examples of the breed are regarded as part of that breed. This
concept has caused controversy both because of the difficulty of regulation and because of the possible genetic
consequences of a limited population (inbreeding). Recent work has been done to genetically classify the various
breeds, with some surprising results regarding the estimated age and interrelations of the breeds.
Generally, before a type of dog is recognized as a true breed, it must be shown that mating a pair of that type
always produces dogs that have the same characteristics as the parents, usually both in appearance and in behavior.
This is known as breeding true. There are many issues concerning what is considered breeding true. For example,
Flat-Coated Retrievers must always be black or dark brown; however, yellow coats occur occasionally in some litters.
Kennel clubs do not recognize the yellow dogs as legitimate members of the breed; some breeders will kill the puppies
rather than risk having the dog grow up, breed, and produce more of the undesired yellow color, perpetuating the
undesirable gene; more often, today, such dogs are neutered and placed in homes as pets. As another example, a
breeding pair of Belgian Shepherds of the Groenendael variety can produce puppies of the Tervuren (brown) variety;
the AKC considers the varieties to be different breeds and, therefore, the brown puppies are invalid and undesirable
dogs, whereas the CKC considers them simply to be different color varieties of the same breed.
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