Pacific white shrimp (Litopenaeus vannamei) dominates global shrimp production, with welfare concerns centred on stocking density, disease management, and eyestalk ablation practices in broodstock management.
Eyestalk ablation involves physically removing or damaging the eyestalks of female broodstock shrimp to induce maturation, a procedure conducted without anaesthesia that causes direct injury and likely pain. Research into shrimp nociception has established that they respond to noxious stimuli in ways consistent with pain experience. High stocking densities prevent expression of natural behaviour and increase disease risk. The industry is under growing pressure to develop and adopt non-ablation spawning techniques, which are feasible in some genetic lines.