Comparison of two protocols for field immobilization of white-eared opossums (Didelphis albiventris)

The aim of this study was to investigate the efficacy of two protocols for field immobilization of white-eared opossums (Didelphis albiventris) and compare their effects on immobilization, cardiopulmonary variables, and recovery times. Twenty one opossums were randomly divided into two groups; G1 re...

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Detalles Bibliográficos
Publicado: 2018
Materias:
Dexmedetomidine
Field immobilization
Isoflurane
Ketamine
Opossum
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16124642_v64_n4_p_Waxman
http://hdl.handle.net/20.500.12110/paper_16124642_v64_n4_p_Waxman
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_16124642_v64_n4_p_Waxman
record_format dspace
spelling paper:paper_16124642_v64_n4_p_Waxman2023-06-08T16:25:13Z Comparison of two protocols for field immobilization of white-eared opossums (Didelphis albiventris) Dexmedetomidine Field immobilization Isoflurane Ketamine Opossum The aim of this study was to investigate the efficacy of two protocols for field immobilization of white-eared opossums (Didelphis albiventris) and compare their effects on immobilization, cardiopulmonary variables, and recovery times. Twenty one opossums were randomly divided into two groups; G1 received ketamine (15 mg kg−1)-dexmedetomidine (0.15 mg kg−1) intramuscularly (IM) and G2 received the ketamine-dexmedetomidine combination and isoflurane once induction was achieved. Oxygen was delivered by face mask (1.5 L minute−1). Thirty minutes after induction, isoflurane was discontinued (G2) and both groups were administered atipamezole (1.5 mg kg−1) IM. Respiratory (ƒR) and heart rate (HR), oxyhemoglobin saturation (SpO2), and rectal temperature (T) were recorded every 5 min. Induction time, time to first movement (RT1), and time to achieve standing (RT2) were recorded. ANOVA and non-parametric tests were used. Level of immobilization was assessed by observation of movements and evaluation of muscle relaxation. The mean induction time was 4.71 min. RT1 and RT2 were significantly longer in G2. No significant differences were found in SpO2 or ƒR. HR did not vary significantly along time, but was higher in G2. Rectal temperature did not show differences between treatments, but decreased significantly with time in G2. Four of nine animals in G1 showed movements, while no animals in G2 did and muscle relaxation was determined to be better in this latter group. Both protocols were adequate for short-term field immobilization, with minimal alterations of HR and T and relatively short recovery times. Isoflurane provided better immobilization with statistically significant prolongation of recovery times. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16124642_v64_n4_p_Waxman http://hdl.handle.net/20.500.12110/paper_16124642_v64_n4_p_Waxman
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Dexmedetomidine
Field immobilization
Isoflurane
Ketamine
Opossum
spellingShingle Dexmedetomidine
Field immobilization
Isoflurane
Ketamine
Opossum
Comparison of two protocols for field immobilization of white-eared opossums (Didelphis albiventris)
topic_facet Dexmedetomidine
Field immobilization
Isoflurane
Ketamine
Opossum
description The aim of this study was to investigate the efficacy of two protocols for field immobilization of white-eared opossums (Didelphis albiventris) and compare their effects on immobilization, cardiopulmonary variables, and recovery times. Twenty one opossums were randomly divided into two groups; G1 received ketamine (15 mg kg−1)-dexmedetomidine (0.15 mg kg−1) intramuscularly (IM) and G2 received the ketamine-dexmedetomidine combination and isoflurane once induction was achieved. Oxygen was delivered by face mask (1.5 L minute−1). Thirty minutes after induction, isoflurane was discontinued (G2) and both groups were administered atipamezole (1.5 mg kg−1) IM. Respiratory (ƒR) and heart rate (HR), oxyhemoglobin saturation (SpO2), and rectal temperature (T) were recorded every 5 min. Induction time, time to first movement (RT1), and time to achieve standing (RT2) were recorded. ANOVA and non-parametric tests were used. Level of immobilization was assessed by observation of movements and evaluation of muscle relaxation. The mean induction time was 4.71 min. RT1 and RT2 were significantly longer in G2. No significant differences were found in SpO2 or ƒR. HR did not vary significantly along time, but was higher in G2. Rectal temperature did not show differences between treatments, but decreased significantly with time in G2. Four of nine animals in G1 showed movements, while no animals in G2 did and muscle relaxation was determined to be better in this latter group. Both protocols were adequate for short-term field immobilization, with minimal alterations of HR and T and relatively short recovery times. Isoflurane provided better immobilization with statistically significant prolongation of recovery times. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
title Comparison of two protocols for field immobilization of white-eared opossums (Didelphis albiventris)
title_short Comparison of two protocols for field immobilization of white-eared opossums (Didelphis albiventris)
title_full Comparison of two protocols for field immobilization of white-eared opossums (Didelphis albiventris)
title_fullStr Comparison of two protocols for field immobilization of white-eared opossums (Didelphis albiventris)
title_full_unstemmed Comparison of two protocols for field immobilization of white-eared opossums (Didelphis albiventris)
title_sort comparison of two protocols for field immobilization of white-eared opossums (didelphis albiventris)
publishDate 2018
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16124642_v64_n4_p_Waxman
http://hdl.handle.net/20.500.12110/paper_16124642_v64_n4_p_Waxman
_version_ 1768542287044804608

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