Comparison of three sedation protocols using midazolam and opioids in domestic ferrets (Mustela putorius furo)
Bibliographic record
Abstract
ABSTRACT Background Performing routine diagnostic tests in ferrets can be challenging without sedation, and intramuscular injections may be problematic due to their limited muscle mass. This study aimed to achieve moderate sedation levels using subcutaneously administered combinations of opioids and midazolam in ferrets. The effects, quality, and duration of sedation, as well as the cardiovascular and respiratory effects of midazolam in combination with three different opioids, were also evaluated. Methods Twelve healthy adult ferrets were used in a randomized, blinded, crossover study. Three sedation protocols were evaluated: MM group with midazolam (0.5 mg/kg SC) and methadone (0.3 mg/kg SC), MB group with midazolam (0.5 mg/kg SC) and butorphanol (0.2 mg/kg SC) and MH group with midazolam (0.5 mg/kg SC) and hydromorphone (0.2 mg/kg SC). Sedation scores and vital parameters were recorded every five minutes. Results All 12 ferrets lost their righting reflex in the MB group and 11 out of 12 in the MH group. In the MM group, only 1 out of 12 lost his righting reflex, and for only 2 minutes. The median sedation duration (between loss and return of righting reflex) was 33.5 minutes (4–66) in the MH group and 42 minutes (36–72) in the MB group. MB group had a significantly shorter time to sternal recumbency, lateral recumbency and loss of righting reflex compared to MH group. The heart rate was significantly lower with MB when compared to MH, and MB induced significantly lower respiratory rates compared to both MH and MM. Retching and vomiting were observed in 84% of ferrets in the MH group, 42% in the MM group and 17% in the MB group. Conclusions and clinical relevance Subcutaneous administration of midazolam at 0.5 mg/kg in combination with either hydromorphone at 0.2 mg/kg or butorphanol at 0.2 mg/kg achieved moderate sedation. The combination of midazolam and butorphanol used in this study showed fewer side effects and variability in sedation duration, which may make it a more appropriate choice in a clinical setting.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".