Field immobilization of captive antelope may be required for medical examination, blood sample collection, and animal identification. The aim of this study was to evaluate the effects of a combination of butorphanol, detomidine, and midazolam (BDM) and its partial reversibility in Nile Lechwe antelope (NLA; Kobus megaceros). Nine captive NLAs, weighing 28-64 kg, were immobilized, in February 2011, with butorphanol 0.20±0.05 (meanSD) mg/kg, detomidine 0.20±0.05 mg/kg and midazolam 0.31±0.08 mg/kg administered intramuscularly (IM) with a blowpipe. Physiologic parameters and depth of anesthesia were recorded when the animals became recumbent at 19.55±8.36 min after darting (T0) and after 10 (T10), 20 (T20) and 30 (T30) min. An arterial blood sample was collected at T20. At the end of the procedures, immobilization was partially reversed with atipamezole 0.25 mg/kg IM. Quality of induction, immobilization, and recovery were scored. The BDM combination induced immobilization and lateral recumbency in 13.44±5.61 min. Median induction score [scored 1 (excellent) to 4 (poor)] was 1 (range 1–2). Heart rate varied 40–104 beats/min, respiratory rate 16–108 breaths/min and rectal temperature 36.5–40.3 C. Hyperthermia observed and rapidly treated in three animals that demonstrated insufficient immobilization after darting. Arterial blood gas analyses revealed a mean pH of 7.43±0.07, PaCO2 of 44.1±6.0 mmHg, PaO2 of 74.0±13.5 and a SaO2 of 94.77±3.96 mmHg. Recovery was smooth and animals were walking in 13.44±7.85 min. Median recovery score [scored 1 (excellent) to 4 (poor)] was 1 (range 1–2). The BDM was effective in immobilizing captive healthy NLAs with minimal cardiorespiratory changes.
EVALUATION OF A BUTORPHANOL, DETOMIDINE, AND MIDAZOLAM COMBINATION FOR IMMOBILIZATION OF CAPTIVE NILE LECHWE ANTELOPES (KOBUS MAGACEROS).
IARUSSI, FABRIZIO;CROVACE, Antonio;STAFFIERI, FRANCESCO
2012-01-01
Abstract
Field immobilization of captive antelope may be required for medical examination, blood sample collection, and animal identification. The aim of this study was to evaluate the effects of a combination of butorphanol, detomidine, and midazolam (BDM) and its partial reversibility in Nile Lechwe antelope (NLA; Kobus megaceros). Nine captive NLAs, weighing 28-64 kg, were immobilized, in February 2011, with butorphanol 0.20±0.05 (meanSD) mg/kg, detomidine 0.20±0.05 mg/kg and midazolam 0.31±0.08 mg/kg administered intramuscularly (IM) with a blowpipe. Physiologic parameters and depth of anesthesia were recorded when the animals became recumbent at 19.55±8.36 min after darting (T0) and after 10 (T10), 20 (T20) and 30 (T30) min. An arterial blood sample was collected at T20. At the end of the procedures, immobilization was partially reversed with atipamezole 0.25 mg/kg IM. Quality of induction, immobilization, and recovery were scored. The BDM combination induced immobilization and lateral recumbency in 13.44±5.61 min. Median induction score [scored 1 (excellent) to 4 (poor)] was 1 (range 1–2). Heart rate varied 40–104 beats/min, respiratory rate 16–108 breaths/min and rectal temperature 36.5–40.3 C. Hyperthermia observed and rapidly treated in three animals that demonstrated insufficient immobilization after darting. Arterial blood gas analyses revealed a mean pH of 7.43±0.07, PaCO2 of 44.1±6.0 mmHg, PaO2 of 74.0±13.5 and a SaO2 of 94.77±3.96 mmHg. Recovery was smooth and animals were walking in 13.44±7.85 min. Median recovery score [scored 1 (excellent) to 4 (poor)] was 1 (range 1–2). The BDM was effective in immobilizing captive healthy NLAs with minimal cardiorespiratory changes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
