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EVALUATION OF A BUTORPHANOL-MIDAZOLAM-MEDETOMIDINE PROTOCOL FOR SHORT PROCEDURES IN LESSER CHEVROTAINS (TRAGULUS SP.)
Guillaume Douay1, Yirui Heng2, Abraham Mathew2
1Mandai Wildlife Group, 729826, Singapore, guillaume.douay@mandai.com.
Summary
The butorphanol-midazolam-medetomidine (BMidM) anesthesia protocol is safe and effective for short procedures in lesser chevrotains. Recovery times were fast, with no significant physiological differences observed between sexes.
Area of Science:
- Veterinary Anesthesiology
- Wildlife Medicine
- Comparative Physiology
Background:
- Lesser chevrotains (Tragulus sp.) require safe and effective anesthesia for research and veterinary procedures.
- Assessing anesthetic protocols in exotic species is crucial for animal welfare and successful outcomes.
Purpose of the Study:
- To evaluate the efficacy and safety of a butorphanol-midazolam-medetomidine (BMidM) combination for short-term anesthesia in lesser chevrotains.
- To compare anesthetic induction and recovery times between male and female lesser chevrotains.
Main Methods:
- Twenty lesser chevrotains (10 males, 10 females) received intramuscular BMidM at specific dosages.
- Physiological variables were monitored during anesthesia, which lasted approximately 30 minutes.
- Anesthesia was reversed using atipamezole and naltrexone.
Main Results:
- Induction and recovery times averaged 9.4 and 10.2 minutes, respectively.
- No significant differences in physiological parameters were found between sexes.
- Females took longer to reach the ambulatory recovery stage compared to males (11.8 min vs 7.8 min).
Conclusions:
- The BMidM protocol provides reliable and safe anesthesia for short, minimally invasive procedures in lesser chevrotains.
- The protocol is characterized by rapid induction and smooth recovery.
- While generally effective, sex-based differences in recovery ambulation warrant consideration.

