Aquaculture

Farmed Tilapia Disease Prevention Welfare

Disease prevention strategies in tilapia farming and their welfare implications, including streptococcosis and columnaris disease.

Key Facts

Streptococcosis is the most economically significant disease in tilapia farming globally
Stress from poor water quality and overcrowding significantly increases disease susceptibility
Vaccination against Streptococcus agalactiae is now available and reduces mortality substantially
Early disease detection and culling reduces suffering of mortally ill fish
Biosecurity between ponds and water sources limits horizontal disease transmission

Welfare Considerations

Diseases in tilapia farming cause substantial suffering for affected fish, including neurological symptoms, hemorrhaging, and behavioral abnormalities. Prevention through biosecurity and vaccination is both more humane and more economically effective than treatment.

What You Can Do

Support aquaculture standards that require disease prevention plans in tilapia certification
Advocate for vaccination uptake in tilapia-producing countries as an antibiotic alternative
Choose tilapia certified to standards with demonstrated disease prevention programs