The seasonal variation of thermophilic campylobacters in beef cattle, dairy cattle and calves

K. N. Stanley, J. S. Wallace, J. E. Currie, P. J. Diggle, K. Jones

Research output: Contribution to journalArticle

Abstract

The epidemiology of clinical cases of campylobacter in temperate climates shows a striking seasonality. In the search for a seasonal environmental reservoir changes in the carriage rate and population size of campylobacters in bovine hosts with time have been measured. Most probable number (MPN) methodology was used to enumerate thermophilic campylobacters in samples taken from the small intestines of beef cattle at slaughter and the fresh faeces of four dairy herds and new-born calves. Statistical analyses revealed significant evidence for seasonal periodicity in the data from dairy herds (P = 0.044). Not only was there a departure from constancy within a 12- month interval but these data revealed a true seasonality, that is, the same periodicity in numbers from one year to the next. Each herd had two peaks per year, in approximately spring and autumn. Peaks coincided in herds on neighbouring farms but those on farms in the north preceded those on farms in the south by 2 and 1 months, respectively (P = 0.0057). Intestinal carriage by beef cattle at slaughter was 89.4% (n = 360) with an average MPN campylobacters per gram fresh weight (MPN gfw-1) of 6.1 x 102. Average MPN gfw-1 in faeces from the dairy herds and calves were 69.9 (S.D. 3) and 3.3 x 104 (S.D. 1.7 x 102). There was no evidence of seasonal periodicity in the size of the campylobacter population in beef cattle at slaughter. Calves were campylobacter free at birth but became colonized within a few days.

Original languageEnglish (US)
Pages (from-to)472-480
Number of pages9
JournalJournal of Applied Microbiology
Volume85
Issue number3
DOIs
StatePublished - 1998
Externally publishedYes

Fingerprint

Campylobacter
dairy calves
beef cattle
dairy cattle
seasonal variation
Periodicity
dairy herds
periodicity
slaughter
Population Density
Feces
farms
feces
herds
calves
temperate zones
Climate
Small Intestine
small intestine
epidemiology

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Applied Microbiology and Biotechnology
  • Biotechnology
  • Microbiology

Cite this

The seasonal variation of thermophilic campylobacters in beef cattle, dairy cattle and calves. / Stanley, K. N.; Wallace, J. S.; Currie, J. E.; Diggle, P. J.; Jones, K.

In: Journal of Applied Microbiology, Vol. 85, No. 3, 1998, p. 472-480.

Research output: Contribution to journalArticle

Stanley, K. N. ; Wallace, J. S. ; Currie, J. E. ; Diggle, P. J. ; Jones, K. / The seasonal variation of thermophilic campylobacters in beef cattle, dairy cattle and calves. In: Journal of Applied Microbiology. 1998 ; Vol. 85, No. 3. pp. 472-480.
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