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The effects of diets deficient in phosphorus, phosphorus and vitamin D, or calcium, on the skeleton and teeth of the growing sheep IV. The uptake of radioactive phosphorus by the bones and teeth

Published online by Cambridge University Press:  27 March 2009

M. R. McRoberts ,
R. Hill  and
A. C. Dalgarno
M. R. McRoberts
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
R. Hill
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
A. C. Dalgarno
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
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Extract

1. Radioactive phosphorus was injected into young sheep that had been fed diets low in either phosphorus, phosphorus and vitamin D or calcium. Forty-eight hours after the injection the animals were killed and samples of bone and teeth were removed for specific activity determinations.

2. The specific activities of bone varied according to the site from which it was taken, but in general a strong inverse relationship was found between specific activity and the quality of the skeleton.

3. In teeth that were formed during the period the diets deficient in phosphorus or phosphorus and vitamin D were fed, the specific activities of the dentine and enamel were greater than for corresponding tissues from the control animals.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 65 , Issue 1 , August 1965 , pp. 21 - 27
Copyright
Copyright © Cambridge University Press 1965

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References

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