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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
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

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
Copyright
Copyright © Cambridge University Press 1964

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