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Effect of vacuum fluctuation during milking on the development of intramammary infection from teat duct colonization by Staphylococcus aureus

Published online by Cambridge University Press:  01 June 2009

Joseph S. King ,
Frank K. Neave  and
Raymond L. Williams
Joseph S. King
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9 AT
Frank K. Neave
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9 AT
Raymond L. Williams
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9 AT
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Summary

Twelve of twenty-one udder quarters with colonized teat ducts became infected within 13 d when milked with a machine producing large cyclic and irregular vacuum fluctuations in the teatcup; of 23 quarters milked under the same conditions, but with metal shields fitted inside the liners to protect the teat apex (Thiel, 1974), only 2 quarters became infected in the same period. The introduction of a post-milking teat disinfectant teat dip resulted in the elimination of orifice colonization from 15 teats dipped in Na hypochlorite solution (40 g/l available chlorine) and from all but 2 of 15 teats dipped in an iodophor solution (5 g/l available iodine).

Type
Original Articles
Information
Journal of Dairy Research , Volume 46 , Issue 4 , November 1979 , pp. 607 - 611
Copyright
Copyright © Proprietors of Journal of Dairy Research 1979

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References

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