The Determination of the Minimum Anaesthetic Concentration of Halothane in the Rock Dove (Columba livia) Using an Electrical Stimulus

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dc.citation.issue1
dc.citation.volume2
dc.contributor.authorLehmann HS
dc.contributor.authorBeausoleil NJ
dc.contributor.authorKongara K
dc.contributor.authorSingh PM
dc.contributor.authorChambers JP
dc.contributor.authorMusk GC
dc.contributor.authorJohnson C
dc.contributor.editorJokimäki J
dc.date.accessioned2024-01-15T20:54:45Z
dc.date.accessioned2024-07-25T06:42:09Z
dc.date.available2021-02-12
dc.date.available2024-01-15T20:54:45Z
dc.date.available2024-07-25T06:42:09Z
dc.date.issued2021-03
dc.description.abstractThis study aims to determine the minimum anaesthetic concentration (MAC) of halothane in the Rock Dove using electrical stimulus. Seven Rock Doves are anaesthetised with halothane, and the MAC is determined using the bracketing method. An electrical stimulus (two single pulses and two five-second stimuli, all separated by five-second pauses; 30 Hz, 30 V, 7.5 ms) is applied to the legs via subcutaneous electrodes. A maximum of eight periods of electrical stimulation, each with a preceding 15 min stable phase, is applied to each bird. If the non-reflexive movement occurred following stimulation, the end-tidal halothane (Fe’Hal) is increased by 10% before the next stimulus delivery. If no movement occurred, Fe’Hal is decreased by 10%. The MAC is the average of the highest concentration that allowed movement and the lowest that prevented movement. Physiological variables and ventilatory settings are recorded every five minutes. The current delivered is calculated offline. The mean ± SD MAC of halothane is 1.62 ± 0.29%, calculated from five birds. During the entire anaesthesia, all birds had cardiac arrhythmias —with three having sporadic recurrent periods of prolonged ventricular standstill followed by marked sinus tachycardia. The mean recorded voltage and calculated current and resistance are 27.6 ± 2.7 V, 20.3 ± 7.3 mAmp and 1.6 ± 0.9 kΩ, respectively. The advantage of halothane for prolonged anaesthesia in Rock Doves may be limited when noxious stimulation is used, due to the development of severe ventricular arrhythmias.
dc.description.confidentialfalse
dc.edition.editionMarch 2021
dc.format.pagination96-105
dc.identifier.citationLehmann HS, Beausoleil NJ, Kongara K, Singh PM, Chambers JP, Musk GC, Johnson C. (2021). The Determination of the Minimum Anaesthetic Concentration of Halothane in the Rock Dove (Columba livia) Using an Electrical Stimulus. Birds. 2. 1. (pp. 96-105).
dc.identifier.doi10.3390/birds2010006
dc.identifier.eissn2673-6004
dc.identifier.elements-typejournal-article
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70714
dc.languageEnglish
dc.publisherMDPI (Basel, Switzerland)
dc.publisher.urihttps://www.mdpi.com/2673-6004/2/1/6
dc.relation.isPartOfBirds
dc.rights(c) 2021 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectavian
dc.subjectRock Doves
dc.subjectColumba livia
dc.subjecthalothane
dc.subjectminimum anaesthesia concentration
dc.subjectcardiac arrhythmias
dc.subjectneurophysiology
dc.titleThe Determination of the Minimum Anaesthetic Concentration of Halothane in the Rock Dove (Columba livia) Using an Electrical Stimulus
dc.typeJournal article
pubs.elements-id444217
pubs.organisational-groupOther
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