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Researchers conclude Norel probiotic may be effective against early mortality syndrome in shrimp

A strain of Vibrio parahaemolyticus was isolated from shrimp infected with early mortality syndrome and used to determine the efficacy of four experimental products against this pathogen. Results from the study, presented at Aquaculture 2016, found that the probiotic ECOBIOL presents a good potential for controlling infections of V. parahaemolyticus TW01 and, consequently, the mortality of shrimp due to AHPND.
June 29, 2016

The presentation “Ecobiol Effects on Early Mortality Syndrome in Shrimps” was given at Aquaculture 2016 in Las Vegas to share results from a study on the effectiveness of the probiotic ECOBIOL.

In the study, a strain of Vibrio parahaemolyticus isolated from shrimp infected with early mortality syndrome/acute hepatopancreatic necrosis disease (EMS/AHPND) capable of reproducing the disease was used to determine the efficacy of four experimental products against this pathogen.

The bacteriostatic activity of ECOBIOL towards the bacteria was determined using a minimum inhibitor concentration (MIC). Except for the control wells containing pure medium (contamination control), all wells were inoculated with bacteria at a certain concentration. After, the plates were incubated at 27°C on a shaker at 90 rpm. After 12 hours, the optical density (bacterial growth) was measured using a microplate reader. The values of absorbance were used to determine the MIC.

All the replicates were effective against the pathogen. Researchers therefore concluded that the probiotic ECOBIOL (Bacillus amyloliquefaciens CECT 5940) presents a good potential for controlling infections of V. parahaemolyticus TW01 and, consequently, the mortality of shrimp due to AHPND.

Who is Norel?

Norel develops, manufactures and trades additives and raw materials for animal nutrition (aquatic and terrestral species).