Evaluación de la actividad depresora de etomidato en dos concentraciones en trucha arcoíris (Onchorhyncus mykiss)

• Autores: Messina, Maria Jimena, Urzúa Pizarro, Natalia, Prieto, Guillermo, Errecalde, Carlos Alberto, Lüders Post, Carlos
• Formato: artículo
• Fecha de Publicación: 2025
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:revistasinvestigacion.unmsm.edu.pe:article/26268
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/26268
• Nivel de acceso: acceso abierto
• Materia: etomidate; anaesthesia; rainbow trout; etomidato; anestesia; trucha arcoíris

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.