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The effect of stress on the redistribution of calcium in sheep

Published online by Cambridge University Press:  27 March 2009

G. Moseley  and
R. F. E. Axford
G. Moseley
Affiliation:
Department of Biochemistry and Soil Science, Memorial Buildings, U.N.c.W., Bangor, North Wales
R. F. E. Axford
Affiliation:
Department of Biochemistry and Soil Science, Memorial Buildings, U.N.c.W., Bangor, North Wales
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Summary

Welsh mountain sheep were subjected to a number of stressful treatments including minor surgical interference, restrictive handling and adrenaline administration. A decline in plasma calcium concentration was consistently observed following treatment, and this was accompanied by the elevation of plasma NEFA levels. There was a highly significant negative correlation between these changes.

Subcutaneous adipose tissue taken by biopsy from adrenaline-treated sheep showed an increase in calcium concentration which was significantly correlated with the depression of plasma calcium concentration.

In vitro incubation of omental fat with adrenaline showed there was an uptake of calcium by adipose tissue from the medium, which was dependent on time and log dose of adrenaline.

The results are discussed in the light of the possible effect of calcium transport into adipose tissue on calcium homeostasis during periods of severe calcium loss.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 81 , Issue 3 , December 1973 , pp. 403 - 409
Copyright
Copyright © Cambridge University Press 1973

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References

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