ALL ethical breeders screen their dogs for inherited defects for which tests are available. This is much more than a "vet check".
Some certifications require examination by veterinary specialists. Breeders who don't test, often argue that even if
sire and dam have certifications, the offspring could be affected. This is true with eyes, hips and elbows. However breeding dogs that test
normal in these areas greatly reduce the odds of the offspring having problems. The DNA tests, on the other hand,
are nearly 100% accurate. Failure to use these tests is neglectful.
Hips & Elbows
These certifications are performed via x-rays submitted to the Orthopedic Foundation For Animals (OFA). They are performed once in a dog's lifetime after they reach the age of 2. ALL passing results are posted on the OFA website. Abnormal
results are available publicly only with owner permission. You can go to www.offa.org and search the registered name of the sire and dam and see their results. If you've been told the hips of the parents are good but
OFA Hips: Normal results are Excellent, Good, Fair. Borderline, Mild, Moderate or Severe are not normal.
OFA Elbows are scored Normal, Grade I, II or III Dysplasia.
PennHIP is also a valid hip evaluation method. Since it is not widely used at this time in the Chesapeake community here is a link for further investigation. PennHip Info
Eyes
OFA CAER Certification (Formerly CERF) should be updated annually or at least within 12 months before each breeding. The older the dog, the more likely problems are to be discovered.
EIC (Exercise Induced Collapse)
PRA (Progressive Retinal Atrophy)
DM (Degenerative Myelopathy)
The 3 diseases above have DNA tests available. These tools provide breeders the ability with nearly 100% accuracy to nearly eliminate the possibility of any offspring from having to deal with these devastating diseases.
For each disease, ONE parent must be clear in order for the pups to be unaffected / not at risk. DM is a bit more complex and slightly less accurate than the others but for all intents and purposes, recommended breeding selections are the same.
Other Tests
There are various other tests that may be done. A breeder must know their lineage and if these are concerns, they should be screening. Thyroid and heart are the two most common. If any type of heart murmur is detected, an advanced cardiac test (such as echocardiogram) is called for.
Some breeders also must test for Ectodermal Dysplasia. The dog where this problem originated has been isolated so only breeders with that particular dog in their pedigree need to test for it. See how
important that pedigree can be? There is also a DNA test for the long coat gene. Ethical breeders avoid producing this disqualifying fault.
American Chesapeake Club Health Tests Database
All of the above tests may be listed in the OFA database which is publicly accessible at this link: https://www.ofa.org/. With the exception of hips and elbows,
the owner must pay a fee for each test to be listed. This led to many owners not listing their information. Recognizing the need for a centralized FREE health test database, the ACC (American Chesapeake Club)
has developed this database. Owners need only submit their test results to the ACC and they will be posted for public viewing for no charge. Follow the link below and search on the sire and dam of the litter.
With this new free service, there is no excuse for having health certifications that are not easily verifiable.