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The effect of copper treatment on the performance of hypocupraemic calves

Published online by Cambridge University Press:  02 September 2010

A. MacPherson ,
R. C. Voss  and
J. Dixon
A. MacPherson
Affiliation:
Agricultural Chemistry Division, West of Scotland Agricultural College, Auchincruive, Ayr KA6 5HW
R. C. Voss
Affiliation:
Agricultural Chemistry Division, West of Scotland Agricultural College, Auchincruive, Ayr KA6 5HW
J. Dixon
Affiliation:
Agricultural Chemistry Division, West of Scotland Agricultural College, Auchincruive, Ayr KA6 5HW
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Abstract

1. Seven experiments involving 191 calves and 40 cows were under- taken over a 2-year period into the effect of copper treatment of hypocupraemic calves on their subsequent performance.

2. Significant increases in mean live-weight gain of copper-treated calves ranging from 19·9 to 34·3 kg/head relative to untreated control groups were obtained in three cases.

3. The frequency of copper injection required to maintain plasma copper levels above 0·60 mg/1 varied from 6 to 12 weeks.

4. The live-weight gain and plasma copper concentration responses are discussed in relation to the pasture herbage concentrations of copper, molybdenum and sulphate.

Type
Research Article
Information
Animal Production , Volume 29 , Issue 1 , August 1979 , pp. 91 - 99
Copyright
Copyright © British Society of Animal Science 1979

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References

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