Anesthetic use of eugenol and benzocaine in juveniles of red tilapia (Oreochromis sp.)

Background: routine practices such as biometrics, transportation and medical procedures are a source of stress to fish. The use of anesthetics is recommended to reduce undesirable effects of stress, such as decreased feed intake and even mortality -in critical cases. Objective: the aim of this study...

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Autores principales:	Daniel Santiago Rucinque, Gina Polo, Javier Borbón, Jaime F. González Mantilla
Formato:	article
Lenguaje:	EN
Publicado:	Universidad de Antioquia 2017
Materias:	anesthesia cortisol fish handling recovery stress Animal culture SF1-1100
Acceso en línea:	https://doaj.org/article/6c4f112f74df4962b22cfb2a12046d29
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spelling	oai:doaj.org-article:6c4f112f74df4962b22cfb2a12046d292021-11-26T19:13:36ZAnesthetic use of eugenol and benzocaine in juveniles of red tilapia (Oreochromis sp.)2256-295810.17533/udea.rccp.v30n1a07https://doaj.org/article/6c4f112f74df4962b22cfb2a12046d292017-01-01T00:00:00Zhttps://revistas.udea.edu.co/index.php/rccp/article/view/325436https://doaj.org/toc/2256-2958Background: routine practices such as biometrics, transportation and medical procedures are a source of stress to fish. The use of anesthetics is recommended to reduce undesirable effects of stress, such as decreased feed intake and even mortality -in critical cases. Objective: the aim of this study was to determine the anesthetic efficacy of eugenol and benzocaine in juveniles of red tilapia Oreochromis sp. Methods: thirty juveniles of red tilapia (Oreochromis sp.) were distributed in groups of 10 individuals as follows; G1: eugenol (50 mg/L), G2: eugenol (100 mg/L) and G3: benzocaine (100 mg/L). The fish were individually placed in the corresponding anesthetic solution. After immersion, times to achieve the different anesthetic stages were recorded. During anesthesia, the fish were measured, weighed and blood samples were collected for glucose and plasma cortisol analysis. Results: time to total loss of equilibrium was higher in G3 (p<0.05) compared to the other two groups. No significant differences were observed among groups regarding time to total loss of equilibrium or time to ventilation absence. Glucose levels were significantly higher in G1 (p = 0.03) in comparison to G3. However, cortisol levels were higher in G3 as compared to the other groups (p<0.05). A mortality rate of 10% was observed in G1 fish. Conclusion: current findings indicate that 100 mg/L eugenol leads to induction of anesthesia in less than 3 min and recovery in less than 5 min, without mortality in juveniles of red tilapia.Daniel Santiago RucinqueGina PoloJavier BorbónJaime F. González MantillaUniversidad de AntioquiaarticleanesthesiacortisolfishhandlingrecoverystressAnimal cultureSF1-1100ENRevista Colombiana de Ciencias Pecuarias, Vol 30, Iss 1, Pp 60-66 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	anesthesia cortisol fish handling recovery stress Animal culture SF1-1100
spellingShingle	anesthesia cortisol fish handling recovery stress Animal culture SF1-1100 Daniel Santiago Rucinque Gina Polo Javier Borbón Jaime F. González Mantilla Anesthetic use of eugenol and benzocaine in juveniles of red tilapia (Oreochromis sp.)
description	Background: routine practices such as biometrics, transportation and medical procedures are a source of stress to fish. The use of anesthetics is recommended to reduce undesirable effects of stress, such as decreased feed intake and even mortality -in critical cases. Objective: the aim of this study was to determine the anesthetic efficacy of eugenol and benzocaine in juveniles of red tilapia Oreochromis sp. Methods: thirty juveniles of red tilapia (Oreochromis sp.) were distributed in groups of 10 individuals as follows; G1: eugenol (50 mg/L), G2: eugenol (100 mg/L) and G3: benzocaine (100 mg/L). The fish were individually placed in the corresponding anesthetic solution. After immersion, times to achieve the different anesthetic stages were recorded. During anesthesia, the fish were measured, weighed and blood samples were collected for glucose and plasma cortisol analysis. Results: time to total loss of equilibrium was higher in G3 (p<0.05) compared to the other two groups. No significant differences were observed among groups regarding time to total loss of equilibrium or time to ventilation absence. Glucose levels were significantly higher in G1 (p = 0.03) in comparison to G3. However, cortisol levels were higher in G3 as compared to the other groups (p<0.05). A mortality rate of 10% was observed in G1 fish. Conclusion: current findings indicate that 100 mg/L eugenol leads to induction of anesthesia in less than 3 min and recovery in less than 5 min, without mortality in juveniles of red tilapia.
format	article
author	Daniel Santiago Rucinque Gina Polo Javier Borbón Jaime F. González Mantilla
author_facet	Daniel Santiago Rucinque Gina Polo Javier Borbón Jaime F. González Mantilla
author_sort	Daniel Santiago Rucinque
title	Anesthetic use of eugenol and benzocaine in juveniles of red tilapia (Oreochromis sp.)
title_short	Anesthetic use of eugenol and benzocaine in juveniles of red tilapia (Oreochromis sp.)
title_full	Anesthetic use of eugenol and benzocaine in juveniles of red tilapia (Oreochromis sp.)
title_fullStr	Anesthetic use of eugenol and benzocaine in juveniles of red tilapia (Oreochromis sp.)
title_full_unstemmed	Anesthetic use of eugenol and benzocaine in juveniles of red tilapia (Oreochromis sp.)
title_sort	anesthetic use of eugenol and benzocaine in juveniles of red tilapia (oreochromis sp.)
publisher	Universidad de Antioquia
publishDate	2017
url	https://doaj.org/article/6c4f112f74df4962b22cfb2a12046d29
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Anesthetic use of eugenol and benzocaine in juveniles of red tilapia (Oreochromis sp.)

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