Aquaculture Welfare

Farmed Rainbow Trout Welfare in Intensive Systems

Rainbow trout are the most widely farmed salmonid after Atlantic salmon, facing similar welfare challenges in intensive systems.

Key Facts

Rainbow trout can sense pain - they have nociceptors and show pain behaviours
Stocking densities in intensive systems can exceed 80 kg/m3
Poor water quality including low oxygen causes chronic physiological stress
Trout show fin damage and scale loss at high densities
Slaughter methods for trout are often less welfare-conscious than for salmon

Welfare Considerations

Rainbow trout share the capacity for suffering with Atlantic salmon and deserve equivalent welfare consideration. The intensive systems used for trout production often fail to meet their behavioural and physiological needs. Improved welfare standards for trout - particularly around slaughter - are urgently needed given the billions farmed annually.

What You Can Do

Support welfare standards that explicitly include rainbow trout
Choose trout products with welfare certification where available
Advocate for improved slaughter methods in trout aquaculture