Pre-slaughter stunning is the primary welfare safeguard in poultry slaughter. Understanding the science behind effective stunning guides better standards and enforcement.
Stunning welfare at poultry slaughter is a critical but technically complex welfare concern. The gap between the intention of pre-slaughter stunning and actual practice can be large: equipment that is incorrectly set, poorly maintained, or not appropriate for the bird species being processed can fail to induce adequate unconsciousness, resulting in birds that regain consciousness before death or experience painful but inadequate electrical current. The welfare stakes are enormous — billions of birds are slaughtered annually, and even small proportions of inadequate stunning represent millions of individual welfare failures. Robust verification, well-trained personnel, and regular equipment calibration are the primary safeguards.