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Effect of milking machine factors on the somatic cell count of milk from cows free of intramammary infection: III. Pulsator rate

Published online by Cambridge University Press:  01 June 2009

George R. Olney  and
George W. Scott
George R. Olney
Affiliation:
Department of Agriculture, South Perth, Western Australia, 6151
George W. Scott
Affiliation:
Department of Agriculture, South Perth, Western Australia, 6151
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Summary

The effect of pulsator rates on the somatic cell count of milk from cows free of intramammary infections was determined. Four pulsator rates ranging from 30 to 120 cycles/min were compared in a Latin square design with 20 cows being milked at each of the 4 pulsator rates for periods of 19 d. Somatic cell count was not affected by any of the pulsator rates and it is concluded that varying pulsator rates will not cause stress or irritation that will lead to an increase in somatic cell count in the absence of mastitis infections.

Type
Original Articles
Information
Journal of Dairy Research , Volume 50 , Issue 2 , May 1983 , pp. 149 - 152
Copyright
Copyright © Proprietors of Journal of Dairy Research 1983

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References

REFERENCES

Afifi, Y. A. 1968 The effects of some mechanical properties of the milking machine on leucocyte counts in milk. Netherlands Milk and Dairy Journal, 22 98–103.Google Scholar
Bramley, A. J., Griffin, T. K. & Grindal, R. J. 1978 Some investigations on the effect of continuous vacuum milking on new infection of the udder. Proceedings, Annual Meeting, National Mastitis Council, Inc. 17 291–300.Google Scholar
Bratlie, O., Slagsvold, P. & Tollersrud, S. 1959 [Significance of pulsation rate in machine milking] Nordisk Veterinärmedicin 11 759–779.Google Scholar
International Organization for Standardization 1977 Milking machine installations-vocabulary. ISO 3918. Switzerland: ISO.Google Scholar
Kingwill, R. G., Dodd, F. H. & Neave, F. K. 1977 Machine Milking And Mastitis. In Machine Milking pp. 231–285 (Eds. Thiel, C. C. and Dodd, F. H.). Reading: National Institute for Research in Dairying (NIRD-HRI Technical Bulletin no. 1)Google Scholar
Olney, G. R. & Mitchell, R. K. 1983 Effect of milking machine factors on the somatic cell count of milk from cows free of intramammary infection. II. Vacuum level and overmilking. Journal of Dairy Research 50 141–148.CrossRefGoogle Scholar
O'Shea, J. & Langley, O. H. 1971 Effect of pulsation ratio on mastitis incidence. Irish Journal of Agricultural Research 10 95–101.Google Scholar
Parkinson, R. 1979 Milking machine faults. New Zealand Journal of Agriculture 139 (2) 8, 10Google Scholar
Schmidt, G. H., Guthrie, R. S., Guest, R. W., Hundtoft, E. B., Kumar, A. & Henderson, C. R. 1963 Effect of changes in milking machine design on milking rate, machine stripping, and mastitis. Bulletin, Cornell Agricultural Experiment Station no. 983 1–30Google Scholar