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A study of serum mineral changes in lactating Welsh mountain ewes under different grazing conditions with special reference to hypomagnesaemia

Published online by Cambridge University Press:  27 March 2009

J. L. L'Estrange  and
R. F. E. Axford
J. L. L'Estrange
Affiliation:
Department of Biochemistry and Soil Science, University College of North Wales, Bangor
R. F. E. Axford
Affiliation:
Department of Biochemistry and Soil Science, University College of North Wales, Bangor
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Extract

Short-term grazing trials with daily blood sampling were carried out on Welsh mountain ewes in early lactation.

1. A small decrease in serum magnesium levels and a very marked decrease in serum inorganic phosphorus levels, were observed in two groups of four ewes, when one group was transferred from an old pasture to a fertilized (high nitrogen and potash) fresh spring ley, and the others to a similar fresh ley but untreated. There was little effect from the fertilizer treatment on the magnesium, calcium, potassium, sodium or phosphorus content of the herbage.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 62 , Issue 3 , June 1964 , pp. 341 - 351
Copyright
Copyright © Cambridge University Press 1964

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