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Post-milking iodine teat skin disinfectants: 3. Residues

Published online by Cambridge University Press:  01 June 2009

Richard F. Sheldrake ,
Roderic J. T. Hoare ,
Stanley C. Chen  and
John McPhillips
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
Stanley C. Chen
Affiliation:
Dairy Industry Authority Laboratories, University of Sydney, N.S.W. 2006, Australia
John McPhillips
Affiliation:
Dairy Industry Authority Laboratories, University of Sydney, N.S.W. 2006, Australia
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Summary

Teat dipping of lactating cows with either 1000 or 5000 mg available iodine/; (mg avI/;) solution and thoroughly washing and drying of the teats before sampling resulted in levels of 70 and 99 µg avI per quarter per milking respectively. Without any pre-milking udder preparation prior to sampling the levels of iodine recorded were 143 and 291 µg avI per quarter per milking respectively. Some systemic transfer of iodine from the teat skin to the milk was observed, but the bulk of iodine residue in milk was of direct teat skin origin.

Type
Original Articles
Information
Journal of Dairy Research , Volume 47 , Issue 1 , February 1980 , pp. 33 - 38
Copyright
Copyright © Proprietors of Journal of Dairy Research 1980

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References

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