Rainbow trout (Oncorhynchus mykiss) growth and digestive enzymes activity fed with autochthonous probiotics

Authors

  • Luis Héctor Hernández Hernández Universidad Nacional Autonoma de México, Faculta de Estudios Profesionales Iztacala Laboratorio de Producción Acuícola https://orcid.org/0000-0001-8404-2811
  • José Alberto Ramírez Torrez Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana unidad Xochimilco
  • Maria Del Carmen Monroy Dosta Laboratorio de Análisis Químico de Alimento Vivo - Universidad Autónoma Metropolitana unidad Xochimilco
  • Jaime Amadeo Bustos Martínez Laboratorio de Microbiología y Biología Molecular - Universidad Autónoma Metropolitana unidad Xochimilco
  • Aida Hamdan Partida Laboratorio de Microbiología y Biología Molecular - Universidad Autónoma Metropolitana-Xochimilco
  • Jorge Castro Mejía Laboratorio de Alimento Vivo - Universidad Autónoma Metropolitana unidad Xochimilco
  • Daftne Itzel Orozco Rojas Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana unidad Xochimilco

DOI:

https://doi.org/10.24275/uam/izt/dcbs/hidro/2019v29n2/Ramirez

Keywords:

digestive enzymes, probiotics, rainbow trout

Abstract

Background. Probiotics in aquaculture are becoming important to improve the growth of fish, because of some useful modifications of physiological process, and consequently in fish growth.Goals.To assess the effects of two autochthonous bacterial strains, with probiotics features, on rainbow trout growth and digestive enzyme activities. Methods. In this study, was tested the effect of Bacillus pumilus (BP), Bacillus sp. (BSP) and the mixture (BPSP), on the growth and the activity of digestive enzymes of rainbow trout. The autochthonous strains, previously characterized as potentials probiotics in vitro, were administered individually at 1 x 107CFU g-1food, and as a mixture, the cellular concentration 0.5 x 107CFU g-1 food each one; during eight weeks. Results. Neither of the strains used generated significative growth, compared to the control. Were the fish fed with BSP that had the best growth, respect to BP and BPSP. The highest activity of enzymes was obtained in the fish treated with bacteria, and only in the case of BPSP the fish had a significant increase (< 0.05) of proteases and amylase activity, compared with CTRL. Under the current trial conditions, strains BP and BSP, had no positive effects on growth and enzyme activities. The mixture improved the activity of protease and amylase of rainbow trout.

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Author Biography

Luis Héctor Hernández Hernández, Universidad Nacional Autonoma de México, Faculta de Estudios Profesionales Iztacala Laboratorio de Producción Acuícola

Profesor Titular A, tiempo completo, definitivo

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Published

2019-11-24

How to Cite

Hernández Hernández, L. H., Ramírez Torrez, J. A., Monroy Dosta, M. D. C., Bustos Martínez, J. A., Hamdan Partida, A., Castro Mejía, J., & Orozco Rojas, D. I. (2019). Rainbow trout (Oncorhynchus mykiss) growth and digestive enzymes activity fed with autochthonous probiotics. HIDROBIOLÓGICA, 29(2). https://doi.org/10.24275/uam/izt/dcbs/hidro/2019v29n2/Ramirez

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