Farm Animal Welfare

Farmed Shrimp Eye Ablation Welfare

The welfare controversy around eyestalk ablation in farmed shrimp used to induce spawning, and efforts to develop alternatives.

Key Facts

Eyestalk ablation involves removing one or both eyestalks to stimulate shrimp spawning
The practice is standard in most commercial shrimp hatcheries globally
Evidence suggests eyestalk ablation causes pain given shrimp nociception research
Natural mating alternatives reduce ablation rates but are commercially challenging
Consumer and industry pressure has led some producers to trial ablation-free systems

Welfare Considerations

Eyestalk ablation is a welfare-significant practice applied to millions of farmed shrimp annually. The procedure, which removes an eyestalk to trigger spawning hormone release, causes direct injury and may cause pain given evidence of crustacean nociception. Developing and scaling ablation-free breeding systems is a priority welfare improvement for the global shrimp industry.

What You Can Do

Choose shrimp from producers that disclose their ablation practices
Support campaigns for ablation-free shrimp production standards
Advocate for inclusion of ablation prohibition in shrimp welfare certification