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Investigations into the use of supplements for the control of hypomagnesaemia in dairy cows during the spring grazing period

Published online by Cambridge University Press:  27 March 2009

C. Line ,
M. J. Head ,
J. A. F. Rook ,
A. S. Foot  and
S. J. Rowland
C. Line
Affiliation:
National Institute for Research in Dairying, Shinfleld, near Reading
M. J. Head
Affiliation:
National Institute for Research in Dairying, Shinfleld, near Reading
J. A. F. Rook
Affiliation:
National Institute for Research in Dairying, Shinfleld, near Reading
A. S. Foot
Affiliation:
National Institute for Research in Dairying, Shinfleld, near Reading
S. J. Rowland
Affiliation:
National Institute for Research in Dairying, Shinfleld, near Reading
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Extract

1. Three experiments are described on the feeding of supplements of calcined magnesite, linseed cake and vitamin D to dairy cows for the control of hypomagnesaemia and the prevention of hypomagnesaemic tetany on spring pastures.

2. A daily supplement of 2 oz. calcined magnesite either contained in 2 lb. of dredge corn cubes or 4 lb. dredge corn mix, or as a drench, gave adequate protection against the development of hypomagnesaemia in the fifty-six cows to which it was given.

3. The supplements of 3½–4 lb. linseed cake and 12,500 i.u. vitamin D gave only partial protection.

4. The economics of providing dairy herds with magnesite during the early grazing period is discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 51 , Issue 3 , December 1958 , pp. 353 - 360
Copyright
Copyright © Cambridge University Press 1958

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References

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