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A simulation of the effects of changes in the Na and K content of milk during mastitis on the growth of Staphylococcus aureus, Streptococcus uberis and Escherichia coli

Published online by Cambridge University Press:  05 November 2021

D.R. Arney ,
H.J. Lindsay ,
S. Bogoro  and
C.J.C. Phillips
D.R. Arney
Affiliation:
Department of Clinical Veterinary Medicine, University of Cambridge, Cambridge CB3 OES, United Kingdom
H.J. Lindsay
Affiliation:
Department of Clinical Veterinary Medicine, University of Cambridge, Cambridge CB3 OES, United Kingdom
S. Bogoro
Affiliation:
Department of Clinical Veterinary Medicine, University of Cambridge, Cambridge CB3 OES, United Kingdom
C.J.C. Phillips
Affiliation:
Department of Clinical Veterinary Medicine, University of Cambridge, Cambridge CB3 OES, United Kingdom
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Extract

In a mastitic event damage to the epithelial tissue of the mammary gland, and in particular an increase in paracellular permeability allows sodium to enter the milk from the blood (Schaar and Funke, 1986). Normally there is a stepwise gradient of declining sodium concentration from the interstitial fluid to the epithelial cells to the milk (Berga and Neville, 1985). Milk potassium content is reduced in milk of cows with mastitis, but the proportional change is less than that of sodium (Wegner and Stull, 1978). An experiment was conducted to investigate the response of three mastitis pathogens to the changes in sodium and potassium concentrations in their growth media that are typical of the changes occurring during a mastitic event.

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Programme
Information
Proceedings of the British Society of Animal Science , Volume 1998 , 1998 , pp. 11
Copyright
Copyright © The British Society of Animal Science 1998

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References

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