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The effect of feeding magnesium-enriched diets on the quality of the albumen of stored eggs

Published online by Cambridge University Press:  06 August 2007

J. B. Monsey ,
D. S. Robinson ,
W. S. Miller  and
Margaret Ellis
J. B. Monsey
Affiliation:
ARC Food Research Institute, Colney Lane, Norwich NR4 7UA
D. S. Robinson
Affiliation:
ARC Food Research Institute, Colney Lane, Norwich NR4 7UA
W. S. Miller
Affiliation:
Kennett Nutritional Centre, Spillers Ltd, Bury Road, Kennett, Newmarket, Suffolk CB8 8QU
Margaret Ellis
Affiliation:
Kennett Nutritional Centre, Spillers Ltd, Bury Road, Kennett, Newmarket, Suffolk CB8 8QU
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Abstract

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1. Pullets were given from 1-d-old diets containing 1.6, 4.1, 8.1 and 12.0 g Mg/kg. Only small effects of these diets on live weight, food consumption, egg number, egg weights or egg-shell thickness were observed except at the highest level (12.0 g Mg/kg) which caused diarrhoea and an appreciable lowering of the live weight of growing pullets. A further group was given from point-of-lay a diet containing 9.3 g Mg/kg.

2. Eggs laid on 3 consecutive days from each of eighteen hens were collected at intervals of 3 weeks until the birds were 68.5 weeks old. Eggs laid on the 3rd day were used to determine the initial proportion of thick egg-white present and also the concentration of Mg, Ca, Na and K in the thick egg-white. Eggs laid on the 1st and 2nd days were stored at 20° for 20 d to establish the proportion of thick egg-white remaining after storage.

3. With the unsupplemented diet the proportion of residual thick egg-white after storage of eggs for 20 d at 20° was 306, 161 and 305 mg/g total egg-white when the hens were 26.5, 53.5 and 68.5 weeks of age respectively. When the diet containing 9.3 g Mg/kg was given, the proportion of thick egg-white after storage remained approximately 400 mg/g throughout the period of the trial.

4. The mean Mg concentration in the thick egg-white of eggs laid by hens given unsupplemented diets was 5.77 mm. The addition of extra Mg to the diet increased the content of Mg in the thick egg-white, for example when the diet contained 9.3 g Mg/kg the mean concentration rose to 7.69 mm.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 37 , Issue 1 , January 1977 , pp. 35 - 44
Copyright
Copyright © The Nutrition Society 1977

References

REFERENCES

Brant, A. W., Otte, A. W. & Norris, K. H. (1951) Fd Technol., Champaign 5, 356.Google Scholar
Brooks, J. & Hale, H. P. (1959) Biochim. Biophys. Acta 32, 237.CrossRefGoogle Scholar
Brooks, J. & Hale, H. P. (1961) Biochim. Biophys. Acta 46, 289.CrossRefGoogle Scholar
Haugh, R. R. (1937) U.S. Egg Poultry Mag. 38 (2), 70.Google Scholar
Hawthorne, J. R. (1950) Biochim. Biophys. Acta 6, 28.CrossRefGoogle Scholar
McWard, G. W. (1967) Br. Poult. Sci. 8, 91.CrossRefGoogle Scholar
Mehring, A. L. & Johnson, D. Jr. (1965) Poult. Sci. 44, 853.CrossRefGoogle Scholar
Monsey, J. B. & Robinson, D. S. (1974) Br. Poult. Sci. 15, 369.CrossRefGoogle Scholar
Roberson, R. H. & Francis, D. W. (1966) Poult. Sci. 45, 369.CrossRefGoogle Scholar
Robinson, D. S. (1972) In Egg Formation and Production, p. 65 [Freeman, B.M. and Lake, P. E., editors]. Edinburgh: British Poultry Science Ltd.Google Scholar
Robinson, D. S. & Monsey, J. B. (1972) J. Sci. Fd Agric. 23, 893.CrossRefGoogle Scholar
Robinson, D. S., Monsey, J. B., Miller, W. S. & Clarke, M. (1975) Proc. Nutr. Soc. 34, 45A.CrossRefGoogle Scholar
Sauveur, B. (1971) Annls. Biol. anim. Biochim. Biophys. 11, 625.CrossRefGoogle Scholar
Sauveur, B. (1973) Proc. 4th Eur. Poult. Conf., London, p. 477.Google Scholar
Sills, V. E. (1974) J. Sci. Fd Agric. 25, 989.CrossRefGoogle Scholar
Staller, B. L. & Sunde, M. L. (1964) Poult. Sci. 43, 1365.Google Scholar