Catfish are among the most widely farmed freshwater fish globally. Their welfare in intensive pond and tank systems depends on water quality, stocking density, and humane handling and slaughter practices.
Catfish welfare in aquaculture is shaped primarily by water quality management and slaughter practices. In intensive pond systems, summer oxygen depletion can reduce dissolved oxygen to lethal levels within hours, causing acute distress and mass mortality before emergency aeration can respond. Overcrowding compounds thermal and water quality challenges. Handling stress during grading, transport, and pre-slaughter operations causes acute physiological responses measurable through cortisol and behavior. Slaughter without prior stunning leaves catfish to die slowly from asphyxiation. Welfare improvements in catfish aquaculture require investment in real-time water quality monitoring, lower stocking densities, and electrical stunning or other effective stunning methods before killing. Consumer demand for certified welfare standards in catfish products creates market incentives for these improvements.