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Further observations on the excretion of salmonella in the faeces of calves fed milk substitute

Published online by Cambridge University Press:  19 October 2009

M. Hinton ,
I. O. Suleyman ,
Vivien Allen  and
A. H. Linton
M. Hinton
Affiliation:
Department of Veterinary Medicine, University of Bristol, Langford House, Langford, Avon BS18 7DU, U.K.
I. O. Suleyman
Affiliation:
Department of Veterinary Medicine, University of Bristol, Langford House, Langford, Avon BS18 7DU, U.K.
Vivien Allen
Affiliation:
Department of Veterinary Medicine, University of Bristol, Langford House, Langford, Avon BS18 7DU, U.K.
A. H. Linton
Affiliation:
Department of Microbiology, The Medical School, University of Bristol, Bristol BS8 1TD, U.K.
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Swabs of rectal faeces were obtained daily for 28 days from 90 calves reared in five batches during the summer of 1983. The calves were purchased unweaned in markets and fed a milk-substitute diet. Salmonella typhimurium phage type DT204c was isolated from calves in four batches and Salmonella newport from one. When the data from the 90 calves were considered together the incidence of salmonellas, excretion rose to peak between 5 and 7 days after purchase before declining to low levels during the fourth week. Salmonella was isolated from 55 (61%) calves; 30 were positive on up to four occasions while 21 and 4 animals respectively were positive between 5 and 11 and 15 and 20 times. In the majority of animals infection was probably subclinical since treatment with antibacterial drugs and excretion of S. typhimurium coincided in four calves only.

Type
Research Article
Information
Journal of Hygiene , Volume 93 , Issue 3 , December 1984 , pp. 539 - 546
Copyright
Copyright © Cambridge University Press 1984

References

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