The welfare of livestock at slaughter depends critically on effective stunning before killing, requiring rigorous implementation and monitoring.
Slaughter represents the final and most acute welfare event in a farmed animal's life. Effective stunning that renders animals instantaneously unconscious before killing is the welfare gold standard. When stunning fails — due to equipment malfunction, poorly trained operators, or animal movement — animals may regain consciousness before killing or experience the killing process while conscious. CCTV in abattoirs, independent monitoring, and regular equipment audits are the most effective tools for reducing stunning failures. Religious slaughter without prior stunning, practiced in some Jewish and Muslim communities, is a contested welfare area where dialogue between religious authorities and welfare scientists has produced some improvements but significant welfare concerns remain.