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Healthy Dogs

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Dog DNA Tests: Why Your Mutt’s Makeup Matters

Discovering your mutt’s background is easier and less expensive than you think.
WebMD Pet Health Feature

Anyone who has had a mixed breed dog has likely wondered: Just what type of dog do I have?

Now, it may be possible to answer that question. Companies specializing in dog DNA testing are enticing owners who are curious about their mutt’s background. Owners may also decide to test so they can take the information to their veterinarians to discuss potential health issues about their dog’s breeds.

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Priced from $60 and up, the tests are available online and at many pet supply retail stores. All of the kits test DNA via a cheek swab sampling, except for the most expensive, Mars Veterinary’s Wisdom Panel Professional, which requires a blood test at a veterinarian’s office (call your local veterinarian for pricing).

Not surprisingly, like most products, not all dog breed DNA tests are created equal. The more breeds in a company’s database, the greater the chance for accuracyin their results, says

Nathan Sutter, PhD, assistant professor of medical genetics at Cornell University. And generally, the more dog breeds the company has in its database, the more expensive the test.

Sutter says such dog DNA tests can typically identify the majority breeds in a canine with great accuracy. “But if a dog is mixed breed and comes from a great many breeds, each with just a small contribution to the total, then the breed test may be unable to identify most or all of the breeds contributing to the dog,” he says. Sutter says that if a dog has a purebred parent or grandparent, the results are highly accurate.

Testing the DNA Tests

James Belzer was always interested in confirming his suspicions that 13-year-old Girl was a Husky/German Shepherd mix. So the Manhattan executive agreed, at the request of WebMD, to try three brands of dog breed DNA tests: Canine Heritage, DDC Veterinary, and Mars Veterinary’s other option, Wisdom Panel.

All of the dog DNA tests Belzer tried use a cheek swab sampling to compare DNA against a number of major breeds. These dog DNA test kits were created to identify dogs of mixed heritage. Purebred confirmation is available through other testing.

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