Animal Welfare Implications of Gene Editing

Gene editing technologies including CRISPR offer potential welfare benefits through disease resistance and reduced painful procedures, but also raise risks of unintended welfare consequences.

Key Facts

Gene editing has produced hornless cattle, eliminating the need for painful dehorning
Disease-resistant pigs have been produced with potential to reduce antibiotic use and illness
Welfare gene editing raises concerns about unintended pleiotropic effects on animal physiology
Regulatory frameworks for gene-edited animals vary enormously by jurisdiction
The ethical framework for welfare-directed gene editing differs from enhancement or cosmetic editing

Welfare Considerations

Gene editing presents a genuine welfare opportunity — editing for disease resistance could prevent suffering in millions of animals currently experiencing costly and painful disease. Hornless cattle from gene editing eliminate the need for dehorning. Resistance to PRRS virus could reduce pig respiratory disease. However, unintended effects are a real risk, and the track record of selective breeding for single traits causing unforeseen welfare problems warrants careful evaluation before widespread deployment.

What You Can Do

Engage with gene editing debates using evidence about both welfare benefits and risks
Support regulatory frameworks requiring welfare assessment of gene-edited livestock before approval
Follow the Nuffield Council on Bioethics guidance on gene editing in animals
Advocate for transparent public disclosure of gene editing applications in animal agriculture
Support welfare-directed gene editing research while requiring rigorous safety evaluation