Hybrid Vigor: Real or Assumed?

Many of us talk about “hybrid vigor”- the notion that mixed-breed dogs avoid the inherited medical maladies passed along to their purebred counterparts. Does proof exist that mixed-breed dogs are indeed healthier? An article within the most recent edition of the _Journal of the American Veterinary Medical Association_ helps answer this question. Titled “Prevalence of inherited disorders among mixed-breed and purebred dogs: 27,254 cases (1995-2010)”, this study determines the proportion of mixed-breed …

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