Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-22T15:20:04.286Z Has data issue: false hasContentIssue false

The epidemiology of salmonella in calves: the role of markets and vehicles

Published online by Cambridge University Press:  15 May 2009

C. Wray
Affiliation:
Central Veterinary Laboratory, New Haw, Weybridge, Surrey KT15 3NB
N. Todd
Affiliation:
MAFF, Veterinary Investigation Centre, Langford, Bristol BS18 7DX
I. M. McLaren
Affiliation:
Central Veterinary Laboratory, New Haw, Weybridge, Surrey KT15 3NB
Y. E. Beedell
Affiliation:
Central Veterinary Laboratory, New Haw, Weybridge, Surrey KT15 3NB
Rights & Permissions [Opens in a new window]

Summary

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Environmental contamination has been shown to be an important aspect of the epidemiology of salmonellosis in calves. Markets and transport vehicles are important links in the calf marketing chain and these were investigated to determine the level of salmonella contamination.

Salmonellas were isolated from 7 of the 14 markets surveyed, with 31 of 838 samples (3.7%) being positive. Nine different salmonella serotypes, of which the commonest was Salmonella typhimurium, were isolated. Four different phage types of S. typhimurium were detected, the commonest being DT204C.

Salmonellas were isolated from 22 of the 107 vehicles (20.6%) examined before washing and from 4 of the 62 vehicles (6.5%) examined after cleaning. Twelve different salmonella serotypes were isolated, of which the most frequent was S. typhimurium. The commonest of the six different S. typhimurium phage types was DT204C.

These results indicate that improved cleaning and disinfection routines both for vehicles and markets are necessary to control salmonellosis in calves.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1991

References

REFERENCES

1.Wray, C. Salmonellosis in cattle. In Practice 1991; 13: 13–5.CrossRefGoogle Scholar
2.Hinton, MH, Ali, EA, Allen, V, Linton, AH. The excretion of Salmonella typhimurium. J Hyg 1983: 91: 3345.CrossRefGoogle ScholarPubMed
3.Wray, C, Todd, N, Hinton, MH. Salmonella typhimurium infection in calves: excretion of S. typhimurium in the faeces of calves in different management systems. Vet Rec 1987; 121: 293–6.Google Scholar
4.Wray, C, Todd, N, McLaren, I, Beedell, Y, Rowe, B. The epidemiology of salmonella infection of calves: the role of dealers. Epidemiol Infect 1990; 105: 295305.Google Scholar
5.Wray, C, McLaren, I, Parkinson, NM, Beedell, Y. Differentiation of Salmonella typhimurium DT204C by plasmid profile and biotyping. Vet Rec 1987: 121: 514–6.Google Scholar
6.Animal salmonellosis. Central Veterinary Laboratory, New Haw, Weybridge. UK, KT15 3NB. MAFF 1990.Google Scholar
7.Coles, NA, Camps, TH, Rowe, LD, Stevens, DG, Hutcheson, DP. Effect of transport on feeder calves. Am J Vet Res 1988: 49: 178–83.Google Scholar
8.Williams, LP, Newell, KW. Sources of salmonellas in market swine. J Hyg 1968; 66: 281–93.CrossRefGoogle ScholarPubMed
9.Gronstol, H, Osborne, AD, Linton, AH. Experimental salmonella infection in calves. 2. Virulence and the spread of infection. J Hyg 1974; 72: 163–8.Google Scholar