Is there an ethical way to breed King Charles Cavalier Spaniels?
Let me start by saying I know little about this breed, which is why I’m asking here, for the experience of those who know more.
From what I’ve read, CKCs have reached a point where serious health issues will eventually develop in nearly 100% of dogs in the breed. According to studies on US CKCs genetic health by NC State, nearly 100% of Cavalier King Charles Spaniels are estimated to develop Mitral Valve Disease (MVD) by age 10. Additionally, over 70% develop Syringomyelia (SM)—a painful neurological condition due to skull malformation. Other prevalent conditions include hip dysplasia (up to 25%) and dental disease (affecting 9.5% in primary care) along with frequent GI issues, patellar luxation, and ear infections.
Obviously, some of these conditions can be screened for using genetic testing and radiography by ethical breeders, but how effective can those tests be when basically 100% of breed is effective with heart conditions? Even if screening was 100% accurate which it rarely is for cardiac conditions, the gene pool of unaffected dogs would be minuscule. All breeds have their health issues, but even “unhealthy” breeds like Dobermans have only about a 60% rate of cardiac issues, not on par with Cavs.
I understand that there are many people who love this breed and that they are lovely dogs but is it really possible to breed healthy cavs? Is breeding them ethically possible if they are likely destined for a life of pain and discomfort? For those in the know, what do you see as the future of the breed?