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Intermittent shedding of thermophilic campylobacters by sheep at pasture.

Jones, Keith and Howard, S. and Wallace, J. S. (1999) Intermittent shedding of thermophilic campylobacters by sheep at pasture. Journal of Applied Microbiology, 86 (3). pp. 531-536. ISSN 1364-5072

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Abstract

The rates at which sheep on different types of pasture shed campylobacters in their faeces were measured over 12 months. Overall, shedding of campylobacters at pasture was between a third and a half of the carriage rate (92%) of the intestines of sheep at slaughter. Shedding was highest during saltmarsh grazing, followed by upland fell and farm grazing. The rate of shedding varied at different times of the year, with the highest rates (100%) coinciding with lambing, weaning, and movement onto new pasture. The lowest rates (0%) occurred when sheep were fed on hay and silage. On the farm, low rates occurred during the whole of gestation, both when the sheep were indoors and outdoors. Campylobacter jejuni was the main species isolated and survived for up to 4 d in sheep faeces. Lambs became colonized by Campylobacter within 1–5 d of being born. Ewes, which were not shedding campylobacters prior to lambing, started to shed after lambing, and ewes which were shedding low numbers of Campylobacter before lambing, increased the numbers of bacteria being shed after lambing.

Item Type: Article
Journal or Publication Title: Journal of Applied Microbiology
Subjects: Q Science > QH Natural history > QH301 Biology
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 10495
Deposited By: Dr Keith Jones
Deposited On: 16 Jul 2008 11:57
Refereed?: Yes
Published?: Published
Last Modified: 17 Sep 2013 10:52
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/10495

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