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Effect of milking machine factors on the somatic cell count of milk from cows free of intramammary infection: I. Vacuum fluctuations

Published online by Cambridge University Press:  01 June 2009

George R. Olney ,
George W. Scott  and
Robert K. Mitchell
George R. Olney
Affiliation:
Department of Agriculture, South Perth, Western Australia, 6151
George W. Scott
Affiliation:
Department of Agriculture, South Perth, Western Australia, 6151
Robert K. Mitchell
Affiliation:
Department of Agriculture, Bunbury, Western Australia, 6230
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Summary

The effect of vacuum fluctuations during milking on the somatic cell count of milk from cows free of intramammary infections was determined. Four vacuum fluctuation treatments were compared using a Latin square design with 20 cows being milked at each of the 4 treatments for a continuous period of 12 d. The vacuum fluctuations were designed to simulate the depressions in vacuum that occur when applying teatcups during milking. In the most severe treatment the vacuum level fell from 50 to 14 kPa. The somatic cell count was not affected by vacuum fluctuation treatment and it is concluded that vacuum fluctuations will not cause an increase in the somatic cell count of milk in the absence of mastitis infections.

Type
Original Articles
Information
Journal of Dairy Research , Volume 50 , Issue 2 , May 1983 , pp. 135 - 140
Copyright
Copyright © Proprietors of Journal of Dairy Research 1983

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References

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