Poultry Pre-Slaughter Welfare: Stunning and Handling

The final hours before slaughter represent a critical welfare period for poultry. Improving stunning effectiveness and pre-slaughter handling can substantially reduce suffering for billions of birds annually.

Key Facts

Approximately 70 billion chickens are slaughtered globally each year, making poultry welfare at slaughter a priority issue
Water bath stunning — the dominant commercial method — involves immersion of shackled birds in electrified water
Shackling conscious birds causes acute pain from the inversion and wing stress required for the process
Water bath stunning fails to render a proportion of birds unconscious before slaughter
Controlled atmosphere killing (CAK) using inert gas mixtures eliminates conscious shackling and is more consistently effective
EU regulations require stunning before slaughter with religious exemptions in some member states
Low atmospheric pressure stunning (LAPS) is an emerging alternative showing welfare benefits for turkey production

Welfare Considerations

Pre-slaughter poultry handling causes significant avoidable suffering. Shackling conscious birds is painful and frightening. Water bath stunning is associated with unacceptable rates of partial or failed stunning. Controlled atmosphere systems represent a welfare improvement for both shackling and stunning effectiveness, but require capital investment that operators resist without regulatory mandate. Given the enormous scale of poultry slaughter, even marginal improvements in stunning effectiveness translate to enormous aggregate welfare gains.

What You Can Do

Support campaigns for mandatory controlled atmosphere killing in commercial poultry slaughter
Ask food companies and retailers about their slaughter welfare standards and stunning method requirements
Choose poultry from suppliers certified to higher welfare slaughter standards
Advocate for religious exemptions to stunning requirements to be reviewed and evidence-assessed
Support research into low-stress poultry handling systems before slaughter
Reduce poultry consumption or shift to plant-based alternatives to reduce involvement in systems with poor slaughter welfare