Chemical immobilisation of the wild Patagonian otter (Lontra provocax) and the North American mink (Neovison vison)

ABSTRACT: The Patagonian otter (Lontra provocax) is an endangered species endemic to southern Chile and Argentina. Most of its distribution range has recently been occupied by the American mink (Neovison vison). As part of a long-term study on the impact of mink in Patagonia, we assessed five revers...

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Autores principales:	Barros-Lama,,Macarena, Azat,,Claudio, Tardone,,Rodolfo, Medina-Vogel*,Gonzalo
Lenguaje:	English
Publicado:	Universidad Austral de Chile. Facultad de Ciencias Veterinarias 2021
Materias:	Anaesthesia atipamezole mustelid reversal
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322021000200127
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spelling	oai:scielo:S0719-813220210002001272021-06-02Chemical immobilisation of the wild Patagonian otter (Lontra provocax) and the North American mink (Neovison vison)Barros-Lama,,MacarenaAzat,,ClaudioTardone,,RodolfoMedina-Vogel*,Gonzalo Anaesthesia atipamezole mustelid reversal ABSTRACT: The Patagonian otter (Lontra provocax) is an endangered species endemic to southern Chile and Argentina. Most of its distribution range has recently been occupied by the American mink (Neovison vison). As part of a long-term study on the impact of mink in Patagonia, we assessed five reversible anaesthetic combination protocols in different doses on wild L. provocax and N. vison, and described the occurrence of any adverse effects. We assessed 16 anaesthetic procedures with a combination of ketamine-medetomidine (KET-MED; 6.0±2.8-0.05±0.01 mg/kg IM, respectively) or ketamine-dexmedetomidine (KET-DEX; 4.1±0.9-0.02±0.004 mg/kg IM) in L. provocax and 23 anaesthetic procedures with KET-MED (13.3±4-0.1±0.04 mg/kg IM), KET-DEX (4.8±0.3-0.024±0.001 mg/kg IM) in a low dose of ketamine (LDK) or KET-DEX (10.2±0.9-0.025±0.002 mg/kg IM) in a high dose of ketamine (HDK) in N. vison. Reversal was accomplished using atipamezole at 5 times the dose of MED or 10 times the dose of DEX. All anaesthetic combinations produced complete immobilisation and rapid anaesthetic induction, except for two otters anaesthetised with KET-MED which exhibited a longer time to initial effect. Hypothermia was commonly observed at the end of the anaesthetic procedures. Due to the hypoxemia presented in four otters at the beginning of anaesthesia, it is recommended to use additional oxygen when possible.info:eu-repo/semantics/openAccessUniversidad Austral de Chile. Facultad de Ciencias VeterinariasAustral journal of veterinary sciences v.53 n.2 20212021-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322021000200127en10.4067/S0719-81322021000200127
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Anaesthesia atipamezole mustelid reversal
spellingShingle	Anaesthesia atipamezole mustelid reversal Barros-Lama,,Macarena Azat,,Claudio Tardone,,Rodolfo Medina-Vogel*,Gonzalo Chemical immobilisation of the wild Patagonian otter (Lontra provocax) and the North American mink (Neovison vison)
description	ABSTRACT: The Patagonian otter (Lontra provocax) is an endangered species endemic to southern Chile and Argentina. Most of its distribution range has recently been occupied by the American mink (Neovison vison). As part of a long-term study on the impact of mink in Patagonia, we assessed five reversible anaesthetic combination protocols in different doses on wild L. provocax and N. vison, and described the occurrence of any adverse effects. We assessed 16 anaesthetic procedures with a combination of ketamine-medetomidine (KET-MED; 6.0±2.8-0.05±0.01 mg/kg IM, respectively) or ketamine-dexmedetomidine (KET-DEX; 4.1±0.9-0.02±0.004 mg/kg IM) in L. provocax and 23 anaesthetic procedures with KET-MED (13.3±4-0.1±0.04 mg/kg IM), KET-DEX (4.8±0.3-0.024±0.001 mg/kg IM) in a low dose of ketamine (LDK) or KET-DEX (10.2±0.9-0.025±0.002 mg/kg IM) in a high dose of ketamine (HDK) in N. vison. Reversal was accomplished using atipamezole at 5 times the dose of MED or 10 times the dose of DEX. All anaesthetic combinations produced complete immobilisation and rapid anaesthetic induction, except for two otters anaesthetised with KET-MED which exhibited a longer time to initial effect. Hypothermia was commonly observed at the end of the anaesthetic procedures. Due to the hypoxemia presented in four otters at the beginning of anaesthesia, it is recommended to use additional oxygen when possible.
author	Barros-Lama,,Macarena Azat,,Claudio Tardone,,Rodolfo Medina-Vogel*,Gonzalo
author_facet	Barros-Lama,,Macarena Azat,,Claudio Tardone,,Rodolfo Medina-Vogel*,Gonzalo
author_sort	Barros-Lama,,Macarena
title	Chemical immobilisation of the wild Patagonian otter (Lontra provocax) and the North American mink (Neovison vison)
title_short	Chemical immobilisation of the wild Patagonian otter (Lontra provocax) and the North American mink (Neovison vison)
title_full	Chemical immobilisation of the wild Patagonian otter (Lontra provocax) and the North American mink (Neovison vison)
title_fullStr	Chemical immobilisation of the wild Patagonian otter (Lontra provocax) and the North American mink (Neovison vison)
title_full_unstemmed	Chemical immobilisation of the wild Patagonian otter (Lontra provocax) and the North American mink (Neovison vison)
title_sort	chemical immobilisation of the wild patagonian otter (lontra provocax) and the north american mink (neovison vison)
publisher	Universidad Austral de Chile. Facultad de Ciencias Veterinarias
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322021000200127
work_keys_str_mv	AT barroslamamacarena chemicalimmobilisationofthewildpatagonianotterlontraprovocaxandthenorthamericanminkneovisonvison AT azatclaudio chemicalimmobilisationofthewildpatagonianotterlontraprovocaxandthenorthamericanminkneovisonvison AT tardonerodolfo chemicalimmobilisationofthewildpatagonianotterlontraprovocaxandthenorthamericanminkneovisonvison AT medinavogelgonzalo chemicalimmobilisationofthewildpatagonianotterlontraprovocaxandthenorthamericanminkneovisonvison
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Chemical immobilisation of the wild Patagonian otter (Lontra provocax) and the North American mink (Neovison vison)

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