Evaluación in vitro de bacteriófagos en la carga bacteriana de vibrios spp. en el camarón blanco (litopenaeus vannamei).

Abstract

The objective of this research is to determine the effect of bacteriophages on the bacterial loads of Vibrios spp. in white shrimp through their application in the balanced feed. Different treatments were established with different concentrations of bacteriophages, in addition to a control group without treatment. The parameters evaluated included the reduction of the bacterial load of vibrios, the survival rate and the weight gain of the shrimp during a period of 15 days. The results showed that the bacteriophage treatments achieved a significant reduction of Vibrio, reaching reductions of more than 90% in the treatments with higher concentrations, while in the control group an increase in bacterial load was observed. Likewise, the application of bacteriophages had a positive impact on shrimp growth with a higher weight gain in the treatments with higher bacterial reduction compared to the control group. These findings support the use of bacteriophages as an effective biotechnological alternative for the control of bacterial diseases in the future, contributing to the reduction of antibiotic use and promoting more sustainable production systems.