Immobilization of coypus (Myocastor coypus) with ketamine hydrochloride and xylazine hydrochloride.
A combination of 100 mg/ml of ketamine hydrochloride (Ket) and 20 mg/ml of xylazine hydrochloride (Xyl) was used to immobilize coypus (Myocastor coypus). Eight mature coypus (four males and four females) were injected intramuscularly with doses ranging from 2.33 to 6.25 mg/kg of KET and 0.25 to 0.86 mg/kg of Xyl. The mean (+/- SE) time for induction, arousal, and recovery were 7.3 +/- 2 min, 23.5 +/- 0.3 min and 46 +/- 2.5 min, respectively. The mean +/- SE doses injected were 4.07 +/- 0.52 mg/kg Ket (range, 2.33 to 6.25 mg/kg) and 0.5 +/- 0.08 mg/kg Xyl (range, 0.25 to 0.86 mg/kg). No adverse responses were observed in any of the animals treated.
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Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Argentina.
Palomares
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Beltrán
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de Villafañe
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Moreno
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D000818:Animals; D004338:Drug Combinations; D005260:Female; D007103:Immobilization; D007649:Ketamine; D008297:Male; D012377:Rodentia / Q000502:physiology*; D013997:Time Factors; D014991:Xylazine
D004338:Drug Combinations; D014991:Xylazine; D007649:Ketamine