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Peggy Sprague/labradorsBreeding labradors know to carry EIC gene defect

This breeder is knowingly continuing to breed dogs that are producing Labrador pups that have the E.I.C. (Exercised Induced Collapse) Genetic Defefrct. This defect causes the dog to loose all control of its hine legs after as little of 10 minutes of exercise. It has even caused death in some cases.These dogs are useless as hunting or filed trial dogs. Peggy Sprague is located at present in Nothern California in the town of Sonoma. If you prchase a dog from this breeder Be sure to get it tested for E.I.C. before purchase.


  • Ta
    Tarin Wood Dec 08, 2009

    Many labrador retrievers can carry one copy of the "EIC" gene. It is so common, that all labradors should be tested, and dogs that have two copies of the gene should not be bred, as they are known as affected. A dog that has one copy of the gene will not be affected with EIC. Such a dog can be bred but never to another carrier of the gene. It is a blessing that the gene has been discovered, as it allows experienced breeders to maintain the qualities labs are known for without totally bottlenecking the gene pool. Within two or three generations, the gene can be eliminated. For a person to criticize someone for breeding dogs that may carry ONE copy of the gene, (assuming such dogs are bred only to tested animals) indicates a total misunderstanding of breeding and genetics. There are many great labradors that offer genetic superiority for field characteristics such as marking ability, bird desire, good nose, trainability, love of water, etc., which are known to carry ONE copy of the eic gene. To eliminate such a large part of the gene pool would be a tragic mistake. Other, perhaps more serious defects would soon show up due to the suddenly limited gene pool. The eic test allows breeders to keep a broad genetic base, and good field qualities, while at the same time, eventually eliminating the eic gene within a couple of generations. It is simply ignorance of genetics that would make a person think that no labrador which is a carrier (has ONE eic gene) should not be bred. Dogs with one copy of the gene will never throw or produce an eic affected offspring as long as it is bred only to dogs that do not have a copy of the gene. This allows breeders to retain a larger gene pool, while at the same time eliminating affected dogs.

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