Dr Eduardo M Leano
Dr Eduardo M LeanoCoordinator, Aquatic Animal Health Programme, Network of Aquaculture Centres in Asia-Pacific (NACA), Thailand

Day 2: 13 Nov 2019 - 2:00 – 2:20 PM

Biosecurity in Shrimp Aquaculture

Shrimp culture plays important roles in poverty alleviation, food security, human nutrition, rural employment, and foreign income generation. Over the past 30 years, the sector has experienced cycles of booms and collapse due to outbreaks of several transboundary diseases. It is estimated that approximately 60% of the disease losses in shrimp aquaculture are caused by viral pathogens and 20% by bacterial pathogens, while losses due to fungi and parasites are relatively small. Currently, emerging threats in the shrimp culture industry include a protozoan disease – Hepatopancreatic microsporidiosis caused by Enterocytozoon hepatopenaei (HPM-EHP), and viral diseases – Viral covert mortality disease (VCMD), and Shrimp haematocyte iridescent virus (SHIV). These diseases are already causing production losses in some countries in the region, and pose a threat to other shrimp-producing countries in the world. Preventing these diseases from spreading is therefore highly important. Efficient biosecurity is considered to be the most effective measure in preventing the entry of pathogenic microorganisms into the shrimp culture system. However, this is easier said than done, as most shrimp culture operations in the region have limited capacity to implement biosecurity measures, especially at the farm level. The message is that despite these devastating shrimp disease threats, continuous increases in production are possible when culture operations are efficiently managed through the implementation of improved biosecurity measures.

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