Published in Scientific Reports, this study by C. Sexton, C. Reichel, A. Ruple, and 24 additional collaborators examined how accurately dog owners report the breed or breed mix of their animals. Breed is widely used to interpret canine behavior, health, physiology, and life outcomes, yet few studies have evaluated the accuracy of breed identification as reported by owners.
The researchers used data from the Dog Aging Project, comparing owner-reported breed information with genetic breed profiles for 5,673 dogs. Their findings revealed an 80% match rate between owner reports and genetic analyses, indicating strong overall agreement.
Among the small portion of cases with discrepancies, the majority involved breeds not represented in the genetic reference panel. Other disagreements arose when owners applied stricter definitions of “purebred” status—such as expecting a 100% genetic match rather than a high-percentage match—or when genetic results showed mixes of closely related breeds that owners perceived as a single breed.
Only 6% of samples displayed disagreements not attributable to reference panel limitations or definitional differences. These results suggest that most owners are cognizant of their dogs’ genetic ancestry, either through breeder records, adoption history, or physical and behavioral traits.
The study supports the validity of using owner-reported breed as a covariate in population-level studies, especially when genetic data may not be available. Accurate breed identification is also important for understanding life history trajectories, managing health risks, and addressing behavioral expectations and biases that influence human–dog interactions.
Source: Sexton, C., Reichel, C., Ruple, A., et al. (2025). Comparing Owner Reported and Genetic Breed Identification Reveals High Concordance in a Large Cohort from the Dog Aging Project. Scientific Reports. Published August 20, 2025.
