Animal Welfare in Genetic Modification

Genetic modification of animals - from research to production - raises welfare questions about both intended and unintended health consequences.

Key Facts

GM salmon (AquAdvantage) that grows twice as fast as conventional salmon has been approved in the US and Canada
Genetically modified pigs (Enviropig) were developed to reduce phosphorus in manure but discontinued
Gene editing with CRISPR enables more precise modifications than earlier GM techniques
Polled cattle created by gene editing could eliminate the welfare harm of dehorning
Welfare risk assessment for GM animals requires evaluating both intended benefits and potential harms

Welfare Considerations

Genetic modification of animals creates both welfare opportunities and welfare risks. GM animals designed for rapid growth or high production may suffer welfare harms similar to selective breeding extremes - AquAdvantage salmon's accelerated growth has raised questions about physiological stress and welfare. Gene editing for polled cattle offers a genuine welfare benefit by eliminating the need for painful dehorning. Welfare risk assessment for GM animals must evaluate the full range of welfare impacts - not just the intended modification but all physiological consequences of genetic change. The precautionary approach requires welfare evaluation before approval rather than post-hoc welfare monitoring.

What You Can Do

Support welfare risk assessment requirements for all GM animal approvals
Engage with GM animal debates based on species-specific welfare evidence
Support gene editing applications with clear welfare benefits like polled cattle
Advocate for regulatory frameworks that evaluate GM animal welfare thoroughly before approval
Stay informed about emerging gene editing applications and their welfare implications