Friday 6 July 2018

White Feces Syndrome (WFS)


Acute hepatopancreatic necrosis disease (AHPND) in cultivated shrimps has been an increasing prevalence of vermiform, gregarine-like bodies within the shrimp hepatopancreas (HP) and midgut.


WFS appears in shrimps from approximately 2 months of culture onwards and caused by gregarines. The vermiform bodies formations are consisting of Aggregated Transformed Microvilli (ATM). The ATM have originated by sloughing from epithelial cells of the shrimp hepatopancreatic tubules. They accumulate at the HP-midgut junction before being discharged within feces via the midgut.


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