Long-term anaesthesia of broiler chickens

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O'Kane, Peter M., Connerton, Ian F. and White, Kate L. (2016) Long-term anaesthesia of broiler chickens. Veterinary Anaesthesia and Analgesia, 43 (1). pp. 72-75. ISSN 1467-2995

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Abstract

Objective To provide stable anaesthesia of long duration in broiler chickens in order to perform a terminal caecal ligated loop procedure.

Study design Prospective experimental study.

Animals Seven clinically healthy broiler chickens (Gallus domesticus) aged 27–36 days, weighing 884–2000 g.

Methods Anaesthesia was induced and maintained with isoflurane in oxygen. All birds underwent intermittent positive pressure ventilation for the duration. End-tidal carbon dioxide, peripheral haemoglobin oxygen saturation, heart rate and oesophageal temperature were monitored continuously. All birds received intraosseous fluids. Butorphanol (2 mg kg–1) was administered intramuscularly at 2 hourly intervals. Euthanasia by parenteral pentobarbitone was performed at the end of procedure.

Results Stable anaesthesia was maintained in four chickens for durations ranging from 435 to 510 minutes. One bird died and one was euthanized after 130 and 330 minutes, respectively, owing to surgical complications and another died from anaesthetic complication after 285 minutes.

Conclusions and clinical relevance Long-term, stable anaesthesia is possible in clinically healthy chickens, provided complications such as hypothermia and hypoventilation are addressed and vital signs are carefully monitored. There are no known previous reports describing monitored, controlled anaesthesia of this duration in chickens.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/979063
Additional Information: This is the pre-peer reviewed version of the following article: Long-term anaesthesia of broiler chickens, O'Kane, P.M., Connerton, I.F., White, K.L., 2015, which has been published in final form at http://dx.doi.org/10.1111/vaa.12305. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Keywords: anaesthesia, avian, chicken, ligated loop, monitoring
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Biosciences > Division of Food Sciences
Identification Number: https://doi.org/10.1111/vaa.12305
Depositing User: Connerton, Ian
Date Deposited: 22 Oct 2015 13:56
Last Modified: 04 May 2020 20:04
URI: https://eprints.nottingham.ac.uk/id/eprint/30526

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