Common bacterial pathogens found in aquaculture Shrimps are Vibriosis such as V. Harveyi, V. Parahaemolyticus, V. Alginolyticus and V. Vulnificus. Specifically, V. Alginolyticus and V. Vulnificus lead to WFD (White Feces Disease). V. Harveyi (Green colony) known to cause mortality in the hatchery process and leading to diseases during the grow-out phase. V. Harveyi release exotoxins and could cause 80-100% mortality. V. Parahaemolyticus AHPND - Acute Hepato Pancreatic Necrosis Disease (Green colony) aka EMS (Early Mortality Syndrome) known to cause shrimps unable to reach market size with large-scale mortality. Loss due to AHPND was reported to be in excess of USD 1 billion per year.

 

Vibrio at a concentration of 105 CFU/ ml in water causes fatality within 2 days, and 10-50% mortality in the affected population.  RMS (Running Mortality Syndrome), known to cause shrimps mortality continues on daily basis till the rest of the culture period. RMS usually start after 35 to 40 days of culture (DOC) with low mortalities and as the culture progressed, the mortality rate also increased and the problem becoming acute at around 90 DOC and farmers were forced to prematurely harvest the crops.

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However, the current conventional lab-based method takes approximately 1-2 days from sample to results, and it is at a high cost + high labour intensity. AR Biotech VRT Kit takes 2 hours to produce the result on site.