Quote:
Originally Posted by Lasher
Please furnish your proof of the preceding claim.
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Purebreds are prone to health problems
Bone and joint disorders that cause lameness
Eye diseases that cause blindness
Sudden heart disease that causes early death
Epilepsy/seizures
Immune system diseases
Neurological diseases
Skin diseases
Bleeding disorders
Cancers and tumors
Over 300 genetic health defects have been documented in dogs, and in many purebreds, the incidence of defects is extremely high. Reasons for this include:
A limited and closed gene pool. Most breeds were built on relatively few founding dogs, so the same sets of genes have been reproduced over and over since the breed began. Registries such as the AKC require that all future offspring come from the mating of dogs registered with their club. This restriction eliminates the vast majority of other dogs that would otherwise be available for breeding.
Without the introduction of new and unrelated genes, in the long term all living creatures suffer "loss of genetic diversity," which inevitably leads to weaker animals with health problems. This is happening right now with purebred dogs.
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