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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1 October 1994
Immobilization of Coypus (Myocastor coypus) with Ketamine Hydrochloride and Xylazine Hydrochloride
R. F. Bó,
F. Palomares,
J. F. Beltrán,
G. de Villafañe,
S. Moreno
Journal of Wildlife Diseases
Vol. 30 • No. 4
October 1994
Vol. 30 • No. 4
October 1994
chemical immobilization
coypu
field study
ketamine hydrochloride
Myocastor coypus
xylazine hydrochloride