Pangasius (Basa or Tra catfish) is one of the most traded fish globally, produced primarily in Vietnam under conditions that raise significant welfare concerns.
Pangasius welfare receives less attention than salmon or shrimp despite its global trade volumes. High stocking densities in earthen ponds create water quality management challenges — organic load accumulates rapidly requiring water exchange management that is imperfect in practice. Periodic oxygen depletion events cause acute respiratory distress in fish that surface in crowded masses. Disease management involves antibiotic use reflecting poor underlying conditions. Slaughter welfare for pangasius typically involves either live chilling or direct beheading without stunning, causing consciousness during killing. Welfare improvement requires stocking density limits based on water quality management capacity, slaughter stunning requirements and antibiotic stewardship programmes. Consumer demand through certification requirements is the most accessible lever.