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Effect of a disinfectant udder wash and a post-milking teat dip on the bacterial population of the teat end and on the rate of new intramammary infection

Published online by Cambridge University Press:  01 June 2009

Richard F. Sheldrake  and
Roderic J. T. Hoare
Richard F. Sheldrake
Affiliation:
New South Wales Department of Agriculture, Veterinary Research Station, Glenfield, N.S.W. 2167, Australia
Roderic J. T. Hoare
Affiliation:
New South Wales Department of Agriculture, Veterinary Research Station, Glenfield, N.S.W. 2167, Australia
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Summary

A pre-milking wash disinfectant procedure employing a 2% (w/v) chlorhexidine solution in a detergent base did not reduce the rate of new intramammary infection in a lactating herd challenged with Staphylococcus aureus. Teat-end swabs showed no significant difference in the number of Staph aureus isolated from the teat-ends pre-washed with either water, or water and chlorhexidine. In contrast, disinfecting teats after milking with a solution containing 5000 mg available iodine/1 significantly reduced the staphylococcal population of the teat-ends and the rate of new intramammary infection, compared with teats not disinfected.

Type
Original Articles
Information
Journal of Dairy Research , Volume 47 , Issue 3 , October 1980 , pp. 253 - 258
Copyright
Copyright © Proprietors of Journal of Dairy Research 1980

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