News features and technical articles about the evolution of aquaculture, one of the world’s fastest growing industries.

Dunhua Zhang

Health & Welfare

Virulent Aeromonas hydrophila in channel catfish

This study investigated factors that predisposed catfish to motile Aeromonas septicemia (MAS) caused by virulent Aeromonas hydrophila (vAh). Results revealed that wounding on fish body surface was important for vAh infection and disease development. 

Health & Welfare

Parasite treatment reduces F. columnare infection in tilapia

The authors conducted a study to evaluate whether treatment of Trichodina-parasitized tilapia with formalin would improve fish survival and reduce F. columnare infection. Tilapia not treated with formalin showed significantly higher mortality than treated fish.