Evaluation of etomidate depressant activity at two concentrations in rainbow trout (Oncorhynchus mykiss)

Authors

  • Maria Jimena Messina Universidad Nacional de Rio Cuarto, Facultad de Agronomía y Veterinaria, Departamento de Clínica Animal, Argentina
  • Natalia Urzúa Pizarro Universidad Santo Tomás, Facultad de Recursos Naturales y Medicina Veterinaria, Escuela de Medicina Veterinaria, Chile
  • Guillermo Prieto Universidad Nacional de Rio Cuarto, Facultad de Agronomía y Veterinaria, Departamento de Clínica Animal, Argentina https://orcid.org/0000-0002-4643-0394
  • Carlos Alberto Errecalde Universidad Nacional de Rio Cuarto, Facultad de Agronomía y Veterinaria, Departamento de Clínica Animal, Argentina https://orcid.org/0000-0002-0921-1088
  • Carlos Lüders Post Universidad Católica de Temuco, Facultad de Recursos Naturales, Departamento de Ciencias Veterinarias, Chile https://orcid.org/0000-0001-7862-4516

DOI:

https://doi.org/10.15381/rivep.v36i2.26268

Keywords:

etomidate, anaesthesia, rainbow trout

Abstract

The aim of this study was to evaluate the depressing activity of etomidate at concentrations of 1 and 2 ppm/L in rainbow trout from an intensive breeding system in Córdoba, Argentina. The use of the anaesthetic, regardless of the dose, produced a reduction in respiratory frequency between 61 and 66% in anaesthesia compared to the basal respiratory frequency (p<0.05). The times of partial and total loss of equilibrium and in anaesthesia were statistically lower (p<0.05) at the dose of 2 ppm/L, while the recovery time did not present significant differences (p>0.05) between groups. The concentrations used induced a dose-dependent state of anaesthesia that allows the manipulation of the fish without adverse effects that compromise the life of the fish.

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Published

2025-04-30

Issue

Vol. 36 No. 2 (2025)

Section

Artículos Primarios

License

Copyright (c) 2025 María Jimena Messina, Natalia Urzúa Pizarro, Guillermo Prieto, Carlos Alberto Errecalde, Carlos Lüders Post

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

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c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).

How to Cite

Messina, M. J., Urzúa Pizarro, N., Prieto, G., Errecalde, C. A., & Lüders Post, C. (2025). Evaluation of etomidate depressant activity at two concentrations in rainbow trout (Oncorhynchus mykiss). Revista De Investigaciones Veterinarias Del Perú, 36(2), e26268. https://doi.org/10.15381/rivep.v36i2.26268