A combination of ketamine hydrochloride and xylazine hydrochloride at doses of 50 mg/kg and 5 mg/kg, respectively, was used to immobilize 48 muskrats (Ondatra zibethicus) from October 1993 to November 1994 in Tennessee (USA). Mean (±SD) time for induction was 2.97 ± 1.1 min. After a mean (±SD) duration of 27.2 ± 3.5 min intramuscular yohimbine hydrochloride at a dose of 0.125 mg/kg was administered. Mean (±SD) recovery time was 48.1 ± 21.6 min. All anesthetic inductions were smooth and sufficient depth of anesthesia was achieved to allow surgical collection of adipose tissue. Recovery times were more variable than expected. There was a significant (P ≤ 0.05) drop in heart rate, respiratory rate, and body temperature during anesthesia. One animal died during recover).
Field Immobilization of Muskrats (Ondatra zibethicus) for Minor Surgical Procedures
Jonathan Sleeman, Richard Stevens, Edward Ramsay; Field Immobilization of Muskrats (Ondatra zibethicus) for Minor Surgical Procedures. J Wildl Dis 1 January 1997; 33 (1): 165–168. doi: https://doi.org/10.7589/0090-3558-33.1.165
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