Dissociative anaesthesia in free-ranging male koalas and selected marsupials in captivity.

M. Bush, J. Graves, S. J. O'Brien, D. E. Wildt

Research output: Contribution to journalArticle

Abstract

Forty seven free-ranging, adult, male koalas were captured and administered an intramuscular injection of the dissociative anaesthetic, Telazol (tiletamine HCl plus zolazepam HCl), at dose rates of 5.0 to 7.7 mg/kg body weight. Anaesthesia induction was rapid and smooth and resulted in a surgical plane of anaesthesia lasting 30 to 45 min. There was no depression of heart rate or respiration. Mild salivation occurred in most animals, but was not a problem because the swallowing reflex was retained. There was no mortality or morbidity and the anaesthesia level was sufficient to allow electroejaculation and multiple blood sampling with no apparent animal discomfort. For 10 of 19 males in which anaesthesia was required for a 90 min protocol, a supplementary Telazol injection (average, 2.5 mg/kg) was necessary. All koalas recovered completely within 3 to 4 h of the initial injection. The results suggest that the optimal Telazol dosage for the adult male koala is 7.0 mg/kg body weight. The retrospective analysis of 259 anaesthesia records involving 14 species indicated that Telazol was equally effective and safe in other captive marsupials.

Original languageEnglish (US)
Pages (from-to)449-451
Number of pages3
JournalAustralian Veterinary Journal
Volume67
Issue number12
StatePublished - Dec 1990
Externally publishedYes

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Phascolarctidae
Marsupialia
Metatheria
anesthesia
Anesthesia
Dissociative Anesthetics
Zolazepam
Tiletamine
Body Weight
injection
tiletamine
Salivation
salivation
Injections
body weight
Intramuscular Injections
blood sampling
Deglutition
dosage
intramuscular injection

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Bush, M., Graves, J., O'Brien, S. J., & Wildt, D. E. (1990). Dissociative anaesthesia in free-ranging male koalas and selected marsupials in captivity. Australian Veterinary Journal, 67(12), 449-451.

Dissociative anaesthesia in free-ranging male koalas and selected marsupials in captivity. / Bush, M.; Graves, J.; O'Brien, S. J.; Wildt, D. E.

In: Australian Veterinary Journal, Vol. 67, No. 12, 12.1990, p. 449-451.

Research output: Contribution to journalArticle

Bush, M, Graves, J, O'Brien, SJ & Wildt, DE 1990, 'Dissociative anaesthesia in free-ranging male koalas and selected marsupials in captivity.', Australian Veterinary Journal, vol. 67, no. 12, pp. 449-451.
Bush, M. ; Graves, J. ; O'Brien, S. J. ; Wildt, D. E. / Dissociative anaesthesia in free-ranging male koalas and selected marsupials in captivity. In: Australian Veterinary Journal. 1990 ; Vol. 67, No. 12. pp. 449-451.
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