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Study Reveals Behavioral Issues in Popular Designer Crossbreed Dogs

3/19/2026, 9:59:07 AM

Overview of the Study

A recent study published in the journal PLOS One has raised concerns about the behavioral tendencies of popular designer crossbreed dogs, specifically cockapoos, cavapoos, and labradoodles. Conducted by researchers at the Royal Veterinary College in the United Kingdom, the study analyzed survey data from 9,402 dog owners to compare the behavioral traits of these crossbreeds with their purebred progenitors: cocker spaniels, Cavalier King Charles spaniels, and Labrador retrievers.

Key Findings

The study found that a significant portion of the designer crossbreeds exhibited more undesirable behaviors than at least one of their purebred parent breeds. Specifically, cockapoos displayed the most problematic behaviors, scoring worse than their progenitors in 16 out of 24 behavioral traits, including owner-directed aggression and excitability. Cavapoos followed, showing more undesirable behaviors in 11 out of 24 traits, while labradoodles had a more balanced profile, scoring worse in five areas but better in six, particularly regarding aggression.

The researchers utilized the Canine Behavioural Assessment and Research Questionnaire (C-BARQ) to evaluate 12 different behavioral traits, revealing that in 44.4% of comparisons, crossbreeds had more undesirable behaviors than their purebred counterparts. In contrast, only 9.7% of comparisons showed crossbreeds with fewer problem behaviors.

Implications for Dog Owners

The findings challenge the widely held belief that designer dogs inherently possess better temperaments and trainability than purebreds. Daniel Mills, a professor of veterinary behavioral medicine at the University of Lincoln, emphasized that while the study is valuable, it does not imply that crossbreeds are genetically predisposed to behavioral issues. He noted that behavior results from a complex interaction between genetics and environment, suggesting that owner expectations and training practices also play significant roles.

Criticism & Opposition

Some experts argue that the study's findings should not deter potential owners from considering designer breeds. They stress the importance of responsible ownership and training, regardless of breed. The study's authors advocate for increased awareness of potential behavioral issues in crossbreeds to support dog welfare and promote informed decision-making among prospective owners.

Official Statements & Responses

The researchers call for a shift in public perception regarding designer dogs, urging potential owners to conduct thorough research on breed characteristics before making a purchase. They highlight the necessity for educational initiatives to bridge the gap between public beliefs and empirical evidence about dog behavior.

What's Next

The study opens avenues for further research into the behavioral traits of crossbreeds, including longitudinal studies to track changes over time. Such investigations could enhance understanding of how crossbreeding affects behavior and inform breeding practices aimed at minimizing undesirable traits while maintaining genetic diversity.

Verbatim Quotes

  • “The results of this study highlight the importance of owners thoroughly exploring the characteristics of any breed or crossbreed during pre-purchase research to avoid misinformed breed selection,” — Gina Bryson, Lead Researcher
  • “Behaviour is always the product of the interaction of genes with the environment, and looking for simple causes in one or the other is doomed to failure,” — Daniel Mills, Professor of Veterinary Behavioural Medicine

This study serves as a critical reminder for dog owners and breeders alike to consider the complexities of canine behavior and the implications of crossbreeding on dog welfare.