Pre-slaughter stunning is the primary welfare intervention at the end of a farmed animal's life. Understanding the methods, their efficacy, and the gap between best practice and common practice is essential for welfare advocacy.
Slaughter welfare is the final welfare event in a farmed animal's life, and its quality depends on stunning efficacy, equipment maintenance, and handler competency. Even approved methods can fail when equipment is poorly maintained, calibration is incorrect, or handlers are inadequately trained or under pressure. Mis-stun rates at commercial slaughter facilities vary from less than 1% in well-managed facilities to over 10% in poorly managed ones — representing millions of animals who experience their killing with inadequate insensibility. The most effective welfare interventions are independent audit and CCTV monitoring that creates accountability for stunning performance, combined with regular training and equipment maintenance requirements. The slaughter welfare gap between what is achievable and what is routine remains one of the most significant and addressable welfare problems in food production.