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Post-milking iodine teat skin disinfectants: 1. Bactericidal efficacy

Published online by Cambridge University Press:  01 June 2009

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
Jo-Anne E. Hutchinson
Affiliation:
New South Wales Department of Agriculture, Veterinary Research Station, Glenfield, N.S.W. 2167, Australia

Summary

An iodine teat skin disinfectant tested in lactating cows over a range of concentrations, 100 to 10 000 mg available iodine/1 (mg avI/l) was found bactericidally effective against Staphylococcus aureus when containing 1000 mg avI/l or greater. Against Streptococcus dysgalactiae 5000 mg avI/l or greater was bactericidally effective.

The addition of glycerine to a disinfectant containing 5000 or 1000 mg avI/l at levels of 225 ml/1 and 105 ml/1, respectively, resulted in a reduction in bactericidal efficacy of the disinfectant. Emulsified paraffin added at concentrations of between 50 and 500 ml/1 had no effect on the efficacy of the 5000 mg avI/l disinfectant, but the addition of 200 ml/1 emulsified paraffin to a 1000 mg avI/l disinfectant significantly reduced its efficiency. Iodine disinfectants containing emulsified paraffin phase separated rapidly during storage, and the bactericidal efficacy of the phases differed significantly and diminished with time.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1980

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References

REFERENCES

Cordeau, G. (1975). Thesis, Ecole Vétérinaire d'Alfort. (Dairy Science Abstracts 38, 615.)Google Scholar
Farnsworth, R. J., Johnson, D. W. & Dewey, L. (1976). Journal of Dairy Science 59, 19972000.CrossRefGoogle Scholar
Gould, G. N. (1943). Veterinary Record 55, 491.Google Scholar
Griffin, T. K., Dodd, F. H., Neave, F. K., Westgarth, D. R., Kingwill, R. G. & Wilson, C. D. (1977). Journal of Dairy Research 44, 2545.CrossRefGoogle Scholar
International Dairy Federation (1962). International Standard 19.Google Scholar
International Dairy Federation (1967). International Standard 44.Google Scholar
Jackson, E. R. (1971). Thesis, University of Reading. Quoted by Somerville, J. M. & Rose, I. D. (1978).Google Scholar
King, J. S., Morant, S. V. & Bramley, A. J. (1977). Veterinary Record 101, 421423.CrossRefGoogle Scholar
King, J. S., Neave, F. K. & Westgarth, D. R. (1977). Journal of Dairy Research 44, 4755.CrossRefGoogle Scholar
Moak, H. (1916). Cornell Veterinarian 6, 3640.Google Scholar
Murnane, D. (1953). Australian Veterinary Journal 29, 7072.CrossRefGoogle Scholar
Neave, F. K., Dodd, F. H., Kingwill, R. G. & WESTGARTH, D. R. (1969). Journal of Dairy Science 52, 696707.CrossRefGoogle Scholar
Newbould, F. H. S. & Barnum, D. A. (1960). Journal of Milk and Food Technology 23, 374376.CrossRefGoogle Scholar
Orr, D. A. & Taylor, M. M. (1968). British Veterinary Journal 124, 481491.CrossRefGoogle Scholar
O'Shea, J., Meaney, W. J., Langley, O. H. & Palmer, J. (1975). Irish Journal of Agricultural Research 14, 99105.Google Scholar
Philpot, W. N., Boddie, R. L. & Pankey, J. W. (1978). Journal of Dairy Science 61, 950955.CrossRefGoogle Scholar
Philpot, W. N. & Pankey, J. W. Jr (1975). Journal of Dairy Science 58, 209216.CrossRefGoogle Scholar
Somerville, J. M. & Rose, I. D. (1978). Veterinary Record 102, 262263.CrossRefGoogle Scholar
Tripathy, S. B., Fincher, M. G. & Bruner, D. W. (1963). Cornell Veterinarian 53, 434444.Google Scholar
Twomey, A., Arnold, M. & Haggie, D. (1977). New Zealand Journal of Agriculture 135 (1), 4749.Google Scholar
Twomey, A., Duirs, G. F., Milne, J. R., Parkinson, R. D. J. & Graham, J. (1976). Dairyfarming Annual, pp. 7283.Google Scholar
Wesen, D. P. & Schultz, L. H. (1970). Journal of Dairy Science 53, 13911403.CrossRefGoogle Scholar