Evaluación de ácidos orgánicos en etapa de pre cría en la producción de camarón blanco.

Abstract

This research was carried out in the Pitahaya Shrimp farm located in the Hondo estuary sector of the Arenillas canton of the El Oro province. Previously, treatments that consisted of the application of antibiotics against bacterial infections caused by Vibrio parahaemolyticus were used. Therefore, their use and abuse have generated bacterial resistance, representing a powerful danger to the health of people, ecosystems and their components. Recent studies seek alternatives for the use of antibiotics in shrimp farming. Several investigations show that using organic acids due to their strong antimicrobial properties constitutes an excellent alternative agent. Therefore, the present investigation proposes the individual use of organic acids as an alternative product to the use of antibiotics for the control of V. parahaemolyticus (AHPND+), a potentially harmful pathogen in shrimp farming. The work stage consisted of establishing the antimicrobial activity of organic acids on the proliferation of V. parahameolyticus. The efficacy of butyric and acetic acids denote an important preventive result (P<0.05), in both cases. Its inhibitory action is different for V. parahameolyticus. The inhibitory concentration showed differences between the organic acids applied and the strain of V. parahameolyticus evaluated. The application of butyric acid showed greater inhibition potential with significant differences (P < 0.05) when compared with acetic acid, contrasting survival with mortality in both cases.