The US catfish industry produces over 300 million pounds annually, primarily in the Mississippi Delta, with significant welfare questions about pond management and slaughter.
US catfish face welfare challenges at multiple stages of production. Summer thermal stratification in earthen ponds creates oxygen-depleted bottom layers where fish suffocate. When surface mixing occurs, entire pond oxygen levels can crash overnight — a phenomenon causing widespread, agonizing hypoxic death. Disease outbreaks including columnaris and enteric septicemia cause mass mortality with significant suffering. Harvesting by seine nets drags fish across pond bottoms and concentrates them in shrinking water, causing crowding stress, scale loss, and injury. The USDA requires catfish processing plants to use stunning before slaughter, but on-farm practices remain less regulated. Improving welfare requires better aeration systems, disease management protocols, and adoption of humane harvest techniques.