Why Doggie DNA Testing Is Worth Consideration

Genetics define us. Our hair color, height, body shape, and even our tastes and preferences are encoded into our genetic composition! It is no wonder that so many people are curious about their pet’s genetic make up as well. Thankfully, tests are now available to help discover your dog’s chromosomal combination. There are also genetic test kits for cats, which offer good accuracy, but give far less specific information.

Other than sheer curiosity, and of course being able to brag that your dog is a certain breed (or three), why should you consider having genetic tests on your dogs? It is simple – with information comes power! Knowing which breeds are at the center of Fido’s being allows an owner to take better care of their pet. For instance, knowing that a dog comes from a breed with strong herding instincts in its genetic backbone allows an owner to seek toys and activities that provide activity and outlets for that particular instinctive drive. This could ultimately reduce the anxiety for the pet while, also allowing the family to better understand certain behaviors the dog may display at home creating a safer/happier environment for the entire family.

Each breed also has it’s own list of health concerns. Knowing that a dog has Labrador Retriever as part of its genetic code, may prompt the owner to have their vet screen for diseases such as hip dysplasia, Tricuspid valve heart disease, or Sudden Acquired Retinal Detachment Syndrome (SARDS), which causes blindness. What’s even better is that some genetic tests also include markers for specific disease predispositions and drug sensitivities! The most common of these would be the MDR1 marker for the Ivermectin (and other drug types) sensitivity in the Collie breeds, and a test for Von Willebrands disease, which can cause abnormal bleeding in the Doberman breeds.

There are many tests on the market that allow consumers to learn more about a dog’s DNA. When purchasing genetic test kits, it is important to consider the following: price of the kit (usually $60 -$200), ease of use (are the directions easy to follow), how many breeds are in the database for comparison, how many genetic markers for disease conditions are included (and which ones may be more important), and the time it takes to get the genetic results.

Another consideration that accompanies the “with knowledge comes power” line of thought is the potential legal ramifications that can come with genetic testing. Currently, certain breeding programs require genetic testing of both male and female animals to qualify for breeding. This process disqualifies animals with undesirable traits, ensuring that the breedings only include the healthiest specimens.

Some breeders are using genetic testing as proof that the pups being sold are from the genetic line that was promised.  These same tests can also prove that the puppy being purchased is free from genetic markers that could lead to illness. This information could nullify a purchase contract if the genetics do not match. Finally, due to breed “profiling” that is occurring with rental properties and home owner insurance eligibility, these genetic tests, if required, could make it difficult for owners of mixed breed dogs that have known ancestry from certain breeds to rent a home or qualify for insurance.

To test or not to test?  That is the question! There are many positive reasons for learning the genetic map of your four-footed companion, but there may be dangers embedded in discovering this very same information. Your veterinarian can help you make this decision and keep your pet healthy and happy no matter what the breed of origin.

Originally published July 2018 in the Lake Norman Herald Citizen.


Dr. Gretchen Burke is a veterinarian with LakeCross Veterinary in Huntersville. The vets in the big yellow house have been treating pets like family for 20 years. For more information, call 704-948-6300.