UK-based company ProChaete, which farms marine worms (polychaetes) for shrimp feed, said it has found no Early Mortality Syndrome (EMS)-causing pathogen after suggestions polychaete products could be part of the cause of the disease.
In December, Shrimp News International carried a report on research by Professor Tim Flegel of Thailand’s National Center for Genetic Engineering and Biotechnology (BIOTEC).
Flegel believes that outbreaks of EMS, currently causing high losses to the shrimp industry, could stem from broodstock that have eaten polychaetes carrying a unique strain of Vibrio parahaemolyticus bacteria (EMS bacteria) in their gut, and thus becoming carriers of the disease.
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