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1 July 1989 REVERSAL BY TOLAZOLINE HYDROCHLORIDE OF XYLAZINE HYDROCHLORIDE–KETAMINE HYDROCHLORIDE IMMOBILIZATIONS IN FREE-RANGING DESERT MULE DEER
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Abstract

We captured 10 free-ranging desert mule deer (Odocoileus hemionus crooki) (five males and five females) by net-gun from a helicopter and immobilized them with xylazine hydrochloride (HCl) (100 mg) and ketamine HCl (300 to 400 mg) injected intramuscularly. Arousal and ambulation times were 13.9 ± 4.2 and 14.3 ± 4.2 min in eight deer injected intravenously with tolazoline HCl (3.0 mg/kg). We observed a curvilinear relationship (R = 0.50, P < 0.01) between rectal temperature and time after induction of anesthesia. Mean peak temperature (41.4 C) occurred at 23.7 ± 3.2 min postinduction and was greater (P < 0.01) than the mean temperature measured initially (40.8 C). Heart and respiratory rates (108 beats/min and 75 breaths/min) were elevated prior to immobilization. Mean heart rate increased (P < 0.05) from 90 ± 9 beats/min in anesthetized deer to 120 ± 13 beats/min after tolazoline HCl injection. A 20% capture-related mortality rate suggests this combination of physical and chemical capture has serious limitations. Captive deer permitted to recover from xylazine HCl–ketamine HCl immobilization without a reversal agent were able to walk in 290 ± 79 min.

DelGiudice, Krausman, Bellantoni, Etchberger, and Seal: REVERSAL BY TOLAZOLINE HYDROCHLORIDE OF XYLAZINE HYDROCHLORIDE–KETAMINE HYDROCHLORIDE IMMOBILIZATIONS IN FREE-RANGING DESERT MULE DEER
Glenn D. DelGiudice, Paul R. Krausman, Elizabeth S. Bellantoni, Richard C. Etchberger, and Ulysses S. Seal "REVERSAL BY TOLAZOLINE HYDROCHLORIDE OF XYLAZINE HYDROCHLORIDE–KETAMINE HYDROCHLORIDE IMMOBILIZATIONS IN FREE-RANGING DESERT MULE DEER," Journal of Wildlife Diseases 25(3), 347-352, (1 July 1989). https://doi.org/10.7589/0090-3558-25.3.347
Received: 27 June 1988; Published: 1 July 1989
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