Pre-slaughter stunning methods for poultry significantly impact the welfare of billions of birds annually.
The final minutes of a commercially farmed chicken's life can involve significant welfare harms: live shackling, electrical stunning failures, and conscious entry into scalding tanks. Controlled atmosphere stunning — where birds are rendered insensible in their transport containers using gas — eliminates live-shackling stress and provides more reliable insensibility. Consumer and retailer pressure for improved slaughter standards has driven meaningful industry change.