Aquaculture

Farmed Trout Harvesting and Slaughter Methods

Rainbow trout are one of the most widely farmed fish species, and their slaughter welfare has received increasing scientific attention.

Key Facts

Traditional carbon dioxide stunning is now recognised as aversive and stressful
Percussive stunning is effective when applied correctly but requires training
Electrical stunning followed by killing is effective in trout
Immersion in ice slurry is commonly used but does not provide rapid insensibility
EU regulations on fish slaughter are under review

Welfare Considerations

Trout are sentient fish capable of experiencing pain and distress. Current harvest methods in much of the industry cause preventable suffering. Investment in effective electrical or percussive stunning systems is a cost-effective welfare improvement with significant impact.

What You Can Do

Choose trout from producers using certified humane slaughter methods
Advocate for regulatory standards requiring effective fish stunning
Support research into fish slaughter welfare improvements