Slaughter is the final welfare event in an animal's life; current standards leave enormous room for suffering at massive scale.
Animals in slaughterhouses experience fear and distress from novel environments, sounds, and smells. Stunning failures mean millions of animals are conscious when killed. Line speed pressure incentivizes shortcuts. The exclusion of poultry from the Humane Methods of Slaughter Act leaves 9 billion of the most-consumed animals entirely unprotected. Better stunning technology and mandatory video auditing are proven interventions.