Rainbow trout are among the most widely farmed fish globally. Understanding their welfare needs helps producers and consumers make better choices.
Trout welfare is increasingly recognised as a priority in sustainable aquaculture. These intelligent fish have sophisticated social hierarchies and respond strongly to environmental conditions. High stocking densities cause chronic stress, evidenced by elevated cortisol, fin damage and increased disease susceptibility. Best practice includes optimal density management, quality feed, water quality monitoring and humane slaughter using percussive stunning. Consumer choices for welfare-certified trout from recognised schemes provide market signals for improved standards.