Isolation of native Oncorhynchus mykiss bacteria with probiotic potential against Yersinia ruckeri

Authors

  • Wilson Quispe G. Facultad de Ciencias Biológicas, Universidad Nacional del Altiplano, Puno
  • Belisario Mantilla M. Facultad de Ciencias Biológicas, Universidad Nacional del Altiplano, Puno
  • Alberto Ccama S. Laboratorio de Microbiología,, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional del Altiplano, Puno
  • Yessica Ortega A. Escuela de Posgrado, Universidad Nacional del Altiplano, Puno
  • Nieves Sandoval C. Laboratorio de Histología, Embriología y Patología Veterinaria, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima

DOI:

https://doi.org/10.15381/rivep.v31i4.19024

Keywords:

resistant bacteria, mortality, production, immune system, trout

Abstract

The aim of this study was to identify native bacteria isolated from the intestinal tract of rainbow trout (Oncorhynchus mykiss) with probiotic properties against Yersinia ruckeri. In the study, 48 healthy trout from the hatchery of the Universidad Nacional del Altiplano (Puno, Peru) were used. The intestinal tract of the fry and juveniles was removed, and samples were taken from the intestinal mucosa. The samples were cultured on MRS agar and incubated at 30 °C for 24-48 h. The colonies were identified by their morphology and their inhibitory effect was evaluated in vitro against a Yersinia ruckeri strain isolated from a high mortality outbreak. Three isolates compatible with the genus Lactobacillus and one isolate compatible with the genus Bacillus were identified. These isolates showed inhibition halos greater than 9 mm in diameter against Y. ruckeri.

 

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Published

2020-11-26

Issue

Section

Artículos Primarios

How to Cite

Quispe G., W., Mantilla M., B., Ccama S., A., Ortega A., Y., & Sandoval C., N. (2020). Isolation of native Oncorhynchus mykiss bacteria with probiotic potential against Yersinia ruckeri. Revista De Investigaciones Veterinarias Del Perú, 31(4), e19024. https://doi.org/10.15381/rivep.v31i4.19024