Fortunately, many breeders have begun incorporating DNA testing into their breeding programs. However, not all of them fully understand how to utilise the results effectively to maintain quality without unnecessarily reducing the gene pool, which can lead to the "bottleneck effect" in a genetic population. This effect can be detrimental, particularly when the goal is to prevent issues beyond just the single genetic defect being focused on.

 

Guidelines for Using Genetic Tests in Breeding

 

1.  Do not breed based solely on genetic profiles! A litter should not be created just because the expected parents have compatible genetic profiles. The priority should be on overall quality, conformation, breed type, character, health, and functional temperament. Once these essential qualities are met, genetic tests should then be used to further refine the selection process.

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​2.  Prioritise DNA test results related to health and quality of life. Health, longevity, and overall well-being should take precedence over non-health-related traits, such as coat colour—especially if the colour is naturally present in the breed’s gene pool and does not affect health. Standards that exclude colours without valid health-related reasons should not always dictate breeding decisions.

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3. Do not eliminate carriers of a single defective gene if they possess excellent qualities. A single gene among millions should not disqualify an otherwise outstanding dog. Instead, breeders should learn how to use carriers responsibly, ensuring that no affected puppies are produced.

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Make use of available genetic testing and do not be misled by individuals with limited knowledge!