Broiler chickens experience their final welfare challenges at slaughter. Shackling, stunning, and bleeding are each associated with potential welfare failures affecting billions of birds annually. Understanding these steps enables better consumer choices and policy advocacy.
Slaughter welfare for broilers concentrates suffering into a short but highly significant window of time. Conscious shackling causes immediate wing-flapping and vocalisation indicating pain — a welfare cost experienced by billions of birds that could be eliminated by moving to CAK systems where birds are killed in transport containers. Electrical waterbath stunning failures result in birds entering the bleed-out tank conscious — the frequency of this outcome in commercial operations is higher than industry typically acknowledges. High-welfare slaughter is technically achievable: inert gas systems in the live haul produce a welfare outcome superior to any electrical method. The barrier is cost of system transition and the lack of regulatory requirements to adopt higher-welfare methods. Consumer certification schemes increasingly specify slaughter method requirements.