“Results from this study give us insight into how dog breeding practices might be modified to reduce the prevalence of certain genetic disorders,” Oberbauer said. But rupture of the cranial cruciate ligament in the knee was more common in mixed breeds. She noted, for example, that elbow dysplasia and dilated cardiomyopathy, a heart condition, appeared more frequently among purebred dogs. “Overall, the study showed that the prevalence of these genetic disorders among purebred and mixed-breed dogs depends on the specific condition,” said animal physiologist Anita Oberbauer, professor and chair of the Department of Animal Science at UC Davis and lead author of the study. The results provide a better understanding of the prevalence and source of such disorders, and could advance efforts to prevent and treat genetic ailments in both dogs and humans. A new study by researchers at the University of California, Davis, indicates that mixed breeds don’t necessarily have an advantage when it comes to inherited canine disorders.įindings of the new study, available online in the June issue of the Journal of the American Veterinary Medical Association, are of particular interest because dogs are second only to humans in the number of identified genetic disorders that affect them. If you think your mixed-breed pup is naturally hardier than the neighbor’s purebred, you may want to think again.
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