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The feeding of fresh and stored chick mashes containing cod-liver oil

Published online by Cambridge University Press:  27 March 2009

Alastair N. Worden
Alastair N. Worden
Affiliation:
Nutritional Research Unit, Huntingdon
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Extract

1. Good quality cod-liver oil, produced by modern methods and containing anti-oxidants, is a highly satisfactory ingredient of the diet of young chicks whether fed fresh or stored as an ingredient of mixed mash for from 2½ to 3½ months before use at the recommended rate of 1 pint/cwt.

2. Chicks so fed had slightly better food conversion ratios and a better appearance, and slightly lower liver vitamin A levels, than those birds receiving a comparable amount of vitamin A in powdered form.

3. Chicks so fed had better food conversion ratios and appearance, a higher liveweight gain, and slightly higher liver vitamin A reserves than those receiving a powdered vitamin preparation at the recommended rate of use of 0·05 lb./cwt.

4. It may be concluded that both this form of codliver oil and the powdered preparation are reliable sources of vitamin A as such.

5. Chicks hatched in early December grew better and maintained their vitamin A reserves for longer than comparable chicks hatched in early March.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 50 , Issue 3 , May 1958 , pp. 340 - 343
Copyright
Copyright © Cambridge University Press 1958

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References

REFERENCES

Barber, R. S., Braude, R., Coates, M. E., Harrison, G. F., Mitchell, K. G. & Thompson, S. Y. (1954). Proc. Brit. Soc. Anim. Prod., p. 45.Google Scholar
Davidson, A. L. (1956). J. Sci. Fd Agric. 7, 240.CrossRefGoogle Scholar
Davies, A. W. (1933). Biochem. J. 27, 1770.CrossRefGoogle Scholar
Davies, A. W. & Worden, A. N. (1954). J. Sci. Fd Agric. 5, 107.CrossRefGoogle Scholar
Davies, A. W. & Worden, A. N. (1958). (Inpreparation.)Google Scholar
Green, H. H. & Allcroft, W. M. (1937) In Methods for the Chemical Analysis of Biological Material in Nutrition Investigations, ed. Godden, W.. Technical Communication No. 9, Imperial Bureau of Animal Nutrition.Google Scholar
Kimble, M. S. (1939). J. Lab. clin. Med. 24, 1055.Google Scholar
Worden, A. N. (1958). (In preparation.)Google Scholar
Yudkin, S. (1941). Biochem. J. 35, 551.CrossRefGoogle Scholar