What is white spot syndrome in shrimp?

White Spot Disease (WSD) in shrimp, caused by the highly contagious White Spot Syndrome Virus (WSSV), is a severe viral infection that results in sudden and extremely high mortality (80–100%). The virus primarily affects the shrimp’s exoskeleton, causing characteristic white spots along with lethargy and loss of appetite. As no effective treatment is available, prevention through strong biosecurity measures and good farm management is critical.

How to improve immunity in shrimp to withstand WSSV challenges?

To help shrimp better withstand WSSV challenges, incorporate Phytocee into the daily shrimp feed to support immunity.

What are the symptoms of the white spot syndrome virus?

Symptoms of WSSV in shrimp include lethargy, white spots on the exoskeleton, discolouration, loose cuticle, and rapid mortality.

What should be done during a WSSV outbreak?

During a WSSV outbreak, reduce feeding, maintain pond pH above 7.5 using lime, avoid cross-contamination, harvest urgently if mortality increases, remove and bury dead shrimp, disinfect pond water with bleaching powder (50 ppm chlorine for 2–3 days) followed by aeration, inform neighbouring farms, and treat discharged water through an Effluent Treatment System (ETS).

Haemoprotozoal Diseases A Persistent Challenge In Indian Diary Practice

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Dr. Jagdish Gudewar

Associate Prof. of Parasitology