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A note on copper retention by pigs fed on various protein sources

Published online by Cambridge University Press:  02 September 2010

P. B. O'Donovan ,
T. A. Spillane  and
J. F. O'Grady
P. B. O'Donovan
Affiliation:
An Foras Talúntais, Moorepark, Fermoy, Co. Cork, Eire
T. A. Spillane
Affiliation:
An Foras Talúntais, Moorepark, Fermoy, Co. Cork, Eire
J. F. O'Grady
Affiliation:
An Foras Talúntais, Moorepark, Fermoy, Co. Cork, Eire
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Extract

Since, under Irish conditions, the source of protein used in pig rations often varies from one area to another, an experiment was conducted to determine the accumulation of copper in the tissues of pigs given the commonly-used

protein sources in diets containing 250 ppm of supplemental copper. The protein sources compared were (a) white-fish meal (370 ppm Cu), (b) soya bean meal (17 ppm. Cu), (c) roller-dried skim milk (2 ppm Cu), and (d) a mixture of soya bean meal and meat and bone meal (5 ppm Cu) (Table 1). The minerals, vitamins and copper sulphate were premixed with about 5 kg. of barley and distributed over the total feed before mixing. The copper sulphate was sieved to remove coarse particles. Analyses of complete feed mixtures are shown in Table 1. As far as possible, the rations were balanced for crude protein, calcium and phosphorus.

Type
Research Article
Information
Animal Production , Volume 8 , Issue 2 , June 1966 , pp. 333 - 336
Copyright
Copyright © British Society of Animal Science 1966

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References

REFERENCES

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