Aquaculture

Farmed Shrimp Pre-Slaughter Welfare: Chilling and CO2 Methods

Methods used to kill farmed shrimp vary widely in their welfare implications, with ice slurry and boiling remaining controversial.

Key Facts

Shrimp show nociceptive responses and may experience pain, though evidence is contested
Ice slurry is considered more humane than boiling live shrimp according to some reviews
CO2 immersion causes behavioural distress responses in several crustacean species
The UK Animal Welfare Act now includes decapods, requiring consideration of their welfare

Welfare Considerations

Under scientific uncertainty about shrimp sentience, applying a precautionary approach to slaughter methods is ethically justified. Consumer preference for clearly labelled higher welfare shrimp can drive industry adoption of better methods.

What You Can Do

Support certification schemes with humane shrimp slaughter requirements
Advocate for precautionary welfare standards for crustaceans in national legislation
Choose shrimp products from certified sustainable and welfare-conscious sources