Commercial shrimp slaughter methods including live chilling and boiling may cause significant distress in sentient animals — prompting welfare scientists and some producers to investigate more humane alternatives.
If shrimp are sentient — as the growing scientific evidence suggests — then the slaughter of trillions of individuals annually using methods that may cause distress represents one of the largest welfare problems in food production. The welfare case for improving shrimp slaughter methods does not require certainty about shrimp sentience — it requires only that the probability is meaningful, which the scientific evidence now supports. The economic incentives for improving shrimp slaughter welfare are limited because speed and cost dominate commercial slaughter decisions. Regulatory requirements for humane slaughter, if extended to shrimp, would create the necessary framework. The Shrimp Welfare Project is making this practical by identifying methods that can be implemented at production scale.