Slaughter of giant river prawns and other large decapod crustaceans by boiling alive is increasingly scrutinised as evidence of crustacean sentience grows, driving development of more humane methods.
Giant river prawn slaughter represents a welfare challenge amplified by scale — billions of individual animals are slaughtered without pre-stunning each year globally. Evidence that decapod crustaceans show pain-like avoidance behaviour, nociception, and stress responses makes live boiling increasingly difficult to justify ethically. Electrical stunning reduces activity rapidly and appears to cause rapid loss of responsiveness. Commercial electrical stunning devices for crustaceans are in development. The precautionary principle of welfare — acting on uncertainty rather than waiting for absolute proof of sentience — argues for accelerating adoption of humane slaughter methods.