Chemical immobilisation of free-ranging Pampas foxes (Pseudalopex gymnocercus): Assessment of ketamine-xylazine and tiletamine-zolazepam combinations.
Two protocols to immobilise free-ranging Pampas foxes for ear-tagging or radio-collaring were evaluated. One hundred fifteen foxes were injected with ketamine-xylazine (K-X) and thirteen with tiletamine-zolazepam (T-Z). The use of both T-Z and K-X combinations typically resulted in a smooth induction and recovery. In 86% of the cases K-X protocol was judged effective (mean±SD, K: 10.7±3.3mg/kg, X: 1.0±1.0mg/kg) while T-Z protocol was judged effective in 92% of the cases (T: 3.6±1.05mg/kg, Z: 3.6±1.05mg/kg). The primary differences between the two drug combinations were that the time necessary for the complete recovery was longer with T-Z, and thermic problems were found more frequently with K-X. Additionally, our results suggest that thermic stress may be a relatively frequent complication for Pampas foxes. This study provides baseline data on some physiologic variables in Pampas foxes captured with different methods and drugs in field conditions.
Grupo de Ecología Comportamental de Mamíferos, Cátedra de Fisiología Animal, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Electronic address: luengos@criba.edu.ar.
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Luengos Vidal
Grupo de Ecología Comportamental de Mamíferos, Cátedra de Fisiología Animal, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET).
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Castillo
Grupo de Ecología Comportamental de Mamíferos, Cátedra de Fisiología Animal, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Argentina.
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Baglioni
Grupo de Ecología Comportamental de Mamíferos, Cátedra de Fisiología Animal, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Argentina.
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Manfredi
Grupo de Ecología Comportamental de Mamíferos, Cátedra de Fisiología Animal, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET).
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Lucherini
Grupo de Ecología Comportamental de Mamíferos, Cátedra de Fisiología Animal, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET).
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Casanave
D000777:Anesthetics / Q000494:pharmacology*; D000818:Animals; D001118:Argentina; D001831:Body Temperature / Q000502:physiology; D001835:Body Weight / Q000502:physiology; D016009:Chi-Square Distribution; D004338:Drug Combinations; D005260:Female; D005589:Foxes / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology; D007103:Immobilization / Q000379:methods / Q000662:veterinary*; D007649:Ketamine / Q000494:pharmacology*; D008297:Male; D056152:Respiratory Rate / Q000502:physiology; D013992:Tiletamine / Q000494:pharmacology*; D014991:Xylazine / Q000494:pharmacology*; D015041:Zolazepam / Q000494:pharmacology*
D000777:Anesthetics; D004338:Drug Combinations; C006131:tiletamine, zolazepam drug combination; D014991:Xylazine; D013992:Tiletamine; D007649:Ketamine; D015041:Zolazepam
Chemical restraint; Grassland; Hyperthermia; Hypothermia; Ketamine–xylazine; Tiletamine–zolazepam