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The availability of calcium in three legumes of grassland

Published online by Cambridge University Press:  27 March 2009

R. H. Armstrong  and
Brynmor Thomas
R. H. Armstrong
Affiliation:
King's College (Newcastle upon Tyne), University of Durham
Brynmor Thomas
Affiliation:
King's College (Newcastle upon Tyne), University of Durham
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Extract

1. The availability of the calcium in three grassland species, all legumes, has been investigated, with the rat as experimental animal.

2. Two procedures involving determination of the calcium balance, (a) by analysis of feed, faeces and urine, and (b) by a slaughter technique, were used.

3. The foregoing methods gave results, for any one species, which were without significant difference. It is considered that the slaughter technique would be the less laborious when any large number of determinations has to be made.

4. The calcium in both lucerne and late-flowering red clover was available to a significantly greater degree than that in wild white clover. In all three species calcium availability was high.

5. The possible significance of the high faecal calcium found in rats receiving wild white clover has been discussed.

6. It was concluded that the extension of availability studies to a wider range of grassland species and of their ash-components would be desirable.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 42 , Issue 4 , October 1952 , pp. 454 - 460
Copyright
Copyright © Cambridge University Press 1952

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References

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