DNA My Dog, a pioneer in canine genetic testing with 18 years of data, reveals why visual breed identification fails most of the time and what pet owners can do about it
— DNA My Dog, a pioneer in canine genetic testing with 18 years of data, announces why visual breed identification fails most of the time and what pet owners can do about it.
Ask a shelter worker what breed a dog is, and they will give you an answer. Ask a veterinarian, and they will give you a different one. Ask the dog’s owner, and you may get a third. According to research in the field of canine genetics, all three of them are probably wrong.
Visual breed identification, the method used by the overwhelming majority of shelters, veterinarians, and pet owners to classify dogs, has a well-documented accuracy problem. Studies have found that even trained professionals correctly identify the dominant breed in a mixed-breed dog less than half the time. For dogs with more than two breeds in their background, accuracy drops further.
DNA My Dog, which has been analyzing canine genetic samples since 2008, has observed this pattern across hundreds of thousands of tests. The company’s breed reference database now covers more than 350 breeds, making it one of the most comprehensive available to consumers, and the gap between what owners believe their dog is and what the DNA actually shows is a consistent finding.
“The breeds people get wrong most often are the ones they are most confident about,” said Mindy Tenenbaum, CEO of DNA My Dog and holder of a Master of Science in Veterinary Forensics. “A dog that looks like a pit bull may have almost no bully breed genetics. A dog that looks like a purebred Lab is often carrying four or five other breeds at significant percentages. The visual signal is genuinely unreliable.”
Why It Matters Beyond Curiosity
The consequences of misidentification extend well past trivia. In jurisdictions with breed-specific legislation, a dog labeled as a restricted breed based on appearance faces housing restrictions, insurance exclusions, or in some cases, confiscation, regardless of what its DNA actually shows. A genetic test that documents the actual breed composition of the animal can serve as meaningful evidence in those situations.
For veterinarians, incorrect breed assumptions can affect care decisions. Certain breeds carry elevated predispositions to joint conditions, cardiac issues, respiratory challenges, and other heritable health factors. When a vet treats a dog as one breed when the genetic profile is actually another, those predispositions may go unmonitored.
For rescue organizations and shelters, the impact is most direct. Research has consistently shown that dogs with known breed information have higher adoption rates than those whose backgrounds are described as unknown or simply “mix.” A dog labeled “pit bull mix” based on physical appearance will attract a different pool of potential adopters than a dog whose DNA test shows it is 40% Labrador, 35% Boxer, and 25% American Staffordshire Terrier, even if both descriptions refer to the same animal.
“DNA testing doesn’t change the dog — it changes what we know about them,” Tenenbaum said. “The bond between a dog and their future family is always possible. Learning more about their story simply helps that connection begin with greater understanding.”
The Most Commonly Misidentified Breeds
Based on DNA My Dog’s testing data, the breeds most frequently misidentified by visual assessment include bully-type breeds, which are routinely over-assigned to dogs with little or no relevant genetics, and herding breeds such as Border Collies and Australian Shepherds, whose markings and coat patterns appear in many mixed-breed dogs. Labrador Retrievers are among the most over-represented breed labels in shelter records, assigned to dogs whose DNA reveals a far more complex background.
Testing as a Standard Practice
DNA My Dog offers its breed composition test alongside a health and trait panel that screens for inherited health markers, a canine allergy test, and a patent-pending Canine Genetic Age test. The company has maintained rescue and shelter partnership pricing since its founding, reflecting a belief that genetic testing should be a standard tool in the adoption process rather than a premium add-on.
“We built this company for the rescue community first,” Tenenbaum said. “Eighteen years later, that is still who we are building for.”
The full DNA My Dog product suite is available at dnamydog.com. Rescue organizations and shelters can contact the company directly for partnership pricing.
About DNA My Dog
Since 2008, DNA My Dog (dnamydog.com) has helped pet owners and dogs forge deeper bonds through accessible, accurate canine genetic testing. Founded by CEO Mindy Tenenbaum, MSc Veterinary Forensics, the company’s product suite includes breed composition testing, a health and trait test, a patent-pending Canine Genetic Age test, a canine allergy test, and the world’s only Deceased Dog DNA test. DNA My Dog’s platform was fully rebuilt in 2023 with next-generation genetic technology and a reference database of more than 350 breeds.
Contact Info:
Name: Jessica Barnett
Email: Send Email
Organization: DNA My Dog
Phone: 416-691-4160
Website: http://www.dnamydog.com
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