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Biocontrol of the vibriosis in the white shrimp (Litopenaeus vannamei) using organic acids in the feeding

Abstract:

In this research 3 formulations were used; pellets were mixed with lactic acid, formic acid, citric acid, sorbic acid and aquaculture binder (M1), pellets were mixed with citric acid, fumaric acid, sorbic acid and aquaculture binder (M2), and pellets were mixed with formic acid (M3). Infected shrimps (Litopenaeus vannamei) with Vibriosis were fed on 200 g of pellets mixed with the 3 formulations twice daily for 5 days. Using the mixture 1 (M1) was obtained the lowest mortality of 10.00%, highest percent survival index of 80.00% and also the highest weight of 54.00 g, whereas using the mixture Control (only pellets) was obtained the highest mortality of 50.00%, lowest percent survival index of 0.00% and also the highest weight of 43.00 g. In addition, differences were found between the results of the 3 mixtures tested, infected Litopenaeus vannamei with Vibrios using the mixture 1 (M1) did not present symptoms of Vibriosis after of the biocontrol test. The mixture 1 (M1) showed the highest content of protein and ash being of 344.20 and 145.70 g.Kg−1 respectively. The results showed the use of organic acids is directly related to the control of Vibriosis and the improvement in the growth of juvenile white shrimp Litopenaeus vannamei.