Dr. Jonas Donner of Genoscoper Labratories, a Finnish company that specializes in animal genetics and testing has found that about 1 in 6 dogs carry the genetic predisposition for genetic disorders. They tested 7000 dogs that made up 230 different breeds. What was important about this research is that some of the diseases that showed up were in breeds that had not been previously reported as having that predisposition.
Because many of the canine inherited disorders are more widespread than previously thought, it indicates that further investigation and testing is needed to help veterinarians and pet owners improve the health of canines.
It also shows that it is important for breeders to conduct genetic testing before they breed their dogs. With breeder and pet owner cooperation, the overall health of our dogs can be improved.
If you plan to purchase a purebred dog, be sure that the parents have been genetically or other wise tested for the diseases and disorders common for that breed. A good breeder will have done this for the dam and sire of a litter. For example, a German Shepherd should be Orthopedic Foundation (OFA) certified free of hip and elbow problems. A Rottweiler should be tested to be free of the canine bleeding disorder, VWD.