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Disinfection properties of some bovine teat dips

Published online by Cambridge University Press:  01 June 2009

J. S. King ,
F. K. Neave  and
D. R. Westgarth
J. S. King
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
F. K. Neave
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
D. R. Westgarth
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
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Summary

The efficacy of 18 disinfectant teat dips was tested on teats artificially contaminated with a milk suspension of Staphylococcus aureus. A solution of Na hypochlorite with 40 g/l available chlorine was significantly more bactericidal than one containing 1 g/l available chlorine and than most other disinfectants tested. The method was not able to distinguish differences in efficacy between solutions containing 40 g/l and 10 g/l available chlorine nor between these and some of the iodophors containing 5 g/l available iodine. The addition of 190–416 g/l (15–33 % v/v) glycerol significantly reduced the bactericidal properties of 3 iodophors (5 g/l available iodine), but soluble lanolin at approximately 20 g/l did not appear to lower the efficiency of NaOCl (45 g/l available chlorine) or of an iodophor (5 g/l available iodine).

Type
Original Articles
Information
Journal of Dairy Research , Volume 44 , Issue 1 , February 1977 , pp. 47 - 55
Copyright
Copyright © Proprietors of Journal of Dairy Research 1977

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