White Feces Syndrome (WFS) is an emergent disease of penaeid shrimp (Penaeus monodon and P. vannamei) that is identified by the presence of floating white fecal strings on pond water in grow-out ponds. Although the clinical manifestations of WFS are well defined, the underling etiology remains obscure. WFS in P. vannamei pre-infected with EHP and challenged with a unique isolate of Vibrio parahaemolyticus isolated from the gastrointestinal tract of a shrimp displaying WFS. There is limited information on specific immune mechanisms provided by the shrimp gut microbiota there are evidences of its interplay with the digestive activities that directly affect shrimp
growth and severity of diseases. New emerging diseases were found to target the shrimp hepatopancreas causing growth inhibition, size disparity, loss of appetite and chronic mortality.
We have used silver nanoparticles & IgY antibodies to control Vibriosis. At the same time Selenium nanoparticles to boost immune system of shrimp. This helps to control bacterial and associated other infectious agents and help to improve productivity. In addition, chelated minerals, vitamins and growth promotors helps to improve recovery from disease.