Update on Current Shrimp Disease Threats in Asia: Managing Trigger Points in Diseases & Production Strategies

Mr Anwar Hasan, Regional Technical Manager – Aquaculture, Biomin Singapore Pte Ltd, Singapore

Every few years, we discover the emergence of new diseases in shrimp farming in Asia. In the past, most of the very damaging diseases in shrimp are caused by viral pathogens, but now, we find that natural bacterial and microsporidian/fungi are major pathogens. The most devastating disease in recent years, that has affected shrimp production, is the acute hepatopancreatic necrosis disease (AHPND) or often known as early mortality syndrome (EMS), which brought down shrimp production in Thailand, China, Malaysia and Vietnam by more than 50%. The white faeces disease (WFD) and Enterocytozoon hepatopenaei (EHP) are new emerging threats to shrimp production. WFD can found in almost all shrimp farming countries in Asia. Indonesia’s shrimp farming has been significantly affected by it. The challenges with disease differs country from country and the strategies adopted at the farm level also differ. In this presentation, I will discuss the current state of shrimp diseases in Asia, the dilemma faced by farmers in many countries as they deploy various strategies to manage the disease and try to understand more on the pathogens present in the farm environment.