The objective of this study was to compare a traditional partially reversible medetomidine–ketamine sedation with a more reversible butorphanol–azaperone–medetomidine combination in Bennett's wallabies (Macropus rufogriseus) maintained in a zoological collection. Fourteen animals were divided into two treatment groups. Individuals in group 1 received an intramuscular (i.m.) injection of butorphanol (0.54 ± 0.05 mg/kg), azaperone (0.22 ± 0.02 mg/kg), and medetomidine (0.16 ± 0.02 mg/kg). Individuals in group 2 received an i.m. injection of ketamine (5.43 ±1.16 mg/kg) with medetomidine (0.05 ± 0.014 mg/kg). For group 1, sedation was reversed with atipamezole (0.81 ± 0.069 mg/kg i.m.) and naltrexone (1.08 ± 0.09 mg/kg i.m.). For group 2, sedation was reversed with atipamezole (0.27 ± 0.056 mg/kg i.m.). There were no significant differences between the groups in mean time to induction, time spent on gas anesthesia, or time to standing after reversal was administered. Animals in both groups required supplemental gas anesthesia to facilitate intubation. No adverse reactions or effects were noted with either protocol; however, the BAM protocol did not provide sufficient sedation for handling in all animals and may not be suitable for use in this species.
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