Using post-larvae derived from specific pathogen free (SPF) stocks in penaeid shrimp farming has led to a dramatic increase in production. At the same time, new pathogens of farmed shrimp are continually being discovered. Once a new shrimp viral pathogen is discovered, the stock must be checked for freedom of that pathogen even if it has never shown any gross signs of that disease. If the SPF stock is found to be positive for the newly discovered pathogen, serious problems can arise. The stock developers are faced with destroying their existing stock which has been developed over a long period at considerable cost and starting the whole stock development process anew with the newly discovered pathogen added to the SPF list. An alternative option requiring less time and cost is in need.
This study was a collaborative effort between the Shrimp Molecular Biology and Biotechnology Laboratory, Center of Excellence for Shrimp Molecular Biology and Biotechnology and Mahidol University.
Ref.: Saksmerprome V, Charoonnart P, Flegel TW. (2017) Feasibility of dsRNA treatment for post-clearing SPF shrimp stocks of newly discovered viral infections using Laem Singh virus (LSNV) as a model. Virus Research, 235, 73–76.
Posted on 19 April 2018.