As a dog lover and breeder, there’s one tool I consider non-negotiable: genetic health testing. It’s not a magic wand, but it’s one of the best defenses we have against passing on hidden diseases, and it’s key to producing healthier litters.

What Genetic Health Testing Is

Genetic health testing involves collecting a DNA sample (often via cheek swab) and analyzing it for specific gene variants known to cause or increase the risk of inherited diseases in dogs. These tests can tell you whether a dog is:

• Clear (does not carry the mutation),
• A carrier (carries one copy of the variant, but is not typically affected), or
• Affected (has two copies and may show disease symptoms).
  caninewelfare.centers.purdue.edu+2American Kennel Club+2

For example, a test may screen for hip dysplasia risk genes, a particular retinal degeneration, von Willebrand disease (a clotting disorder), or breed‑specific conditions. Many modern panels examine dozens or even hundreds of gene variants. Embarkvet+2American Kennel Club+2

Why It Matters for Breeders

• Avoid breeding affected dogs: If a dog is “affected” or has a disease genotype, using it as a breeder risks producing sick puppies. Responsible breeders typically exclude affected dogs (or only use them under strict conditions).
• Manage carriers wisely: Carriers can be bred safely in many cases, as long as the other parent is clear (so puppies don’t end up affected).
• Identify hidden risk: Some serious conditions don’t show up until later in life. Genetic testing can catch them before an animal is used for breeding.
• Promote genetic diversity: Over‑screening or excluding too many dogs can shrink the gene pool. Testing helps balance between health and diversity.
• Transparency with buyers: Providing genetic results builds trust and shows you’re invested in puppy health.

Limitations & Practical Realities

• Genetic tests don’t cover everything. For example, hip dysplasia is influenced by many genes and by environment (diet, growth, exercise), so no single gene test can guarantee a dog won’t develop it. Cornell Vet College+3American Kennel Club+3PetPace+3
• New variants are still being discovered, so testing panels evolve over time.
• Misinterpretation is a risk. Not all breeders (or buyers) are geneticists, so you must understand what results mean.
• Some breeds require very specific tests, not generic ones.

Good Examples / Tools Worth Knowing

• Embark for Breeders: Offers a panel with over 270 genetic health variants and tools to predict litter health. Embarkvet
• Optimal Selection Canine: Breed‑focused DNA testing designed for breeders, with predictions for pairings. Optimal Selection+1
• Paw Print Genetics: Known for canine health testing services and partnerships with breed clubs. pawprintgenetics.com
• AKC DNA Kit: For parentage verification and identity; a useful complement for breeders. American Kennel Club

Where to Learn More

• Overview of genetic testing from the AKC: “Genetic Testing in Dogs – an Overview” American Kennel Club
• Discussion of tests reputable breeders use (hips, eyes, thyroid, etc.) from Ethos Vet Ethos Veterinary Health
• Guidance in pre‑breeding health screening from Purdue’s canine welfare center caninewelfare.centers.purdue.edu