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The retention of 59Fe and 65Zn by preruminant lambs given milk-substitutes based on either casein or soya-bean-protein isolate

Published online by Cambridge University Press:  24 July 2007

R. Hill  and
D. M. Walker
R. Hill
Affiliation:
The Royal Veterinary College (University of London), Boltons Park, Potters Bar, Hero EN6 1NB
D. M. Walker
Affiliation:
Department of Animal Husbandry, University of Sydney, Sydney, New South Wales 2006, Australia
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Abstract

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1. Eight newborn lambs were given milk-substitutes based on casein (n 4) or a soya-bean-protein isolate (n 4). On the morning before a 10 d collection period, the milk-substitutes were supplemented with 59Fe as ferric chloride and 5Zn as zinc chloride. Faeces and urine were collected daily and determinations of 59Fe and 65Zn were made on these separately. During a second 10 d period the dosing procedure and collection were repeated but the diet of each lamb was reversed.

2. Mean retention of 59Fe in lambs given the casein diet was 0.50 (SE 0.12) and in those given the soya-bean-protein diet 0.06 (SE 0.05). There were large variations among animals but the treatment effect was significant at P < 0.05. Retention of 65Zn was significantly greater than that of 59Fe for all lambs but the effect of dietary treatment was similar to that for Fe. 65Zn retention values for casein and soya-bean-protein diets were 0.84 (E 0.06) and 0.52 (SE 0.03) respectively, and the difference was significant at P < 0.01.

3. There were only very small amounts of 59Fe and 65Zn in urine, representing 0.002–0.003 of the dose.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 53 , Issue 3 , May 1985 , pp. 587 - 593
Copyright
Copyright © The Nutrition Society 1985

References

REFERENCES

Bjorn-Rasmussen, E., Halberg, L. & Walker, R. B. (1973). American Journal of Clinical Nutrition 26, 1313–1319.CrossRefGoogle Scholar
Bremner, I. & Dalgarno, A. C. (1973). British Journal of Nutrition 30, 61–76.CrossRefGoogle Scholar
Cook, J. D., Morck, T. A. & Lynch, S. A. (1981). American Journal of Clinical Nutrition 34, 2622–2629.CrossRefGoogle Scholar
Davidson, S., Passmore, R., Brock, J. F. & Truswell, A. S. (1979). Human Nutrition and Dietetics, 7th ed. London: Churchill-Livingstone.Google Scholar
Davies, N. T. (1979). Proceedings of the Nutrition Society 38, 121–128.CrossRefGoogle Scholar
Davies, N. T. & Flett, A. A. (1978). British Journal of Nutrition 39, 307–316.CrossRefGoogle Scholar
Davies, N. T. & Olpin, S. E. (1979). British Journal of Nutrition 41, 590–603.Google Scholar
Erdman, J. W. & Forbes, R. M. (1981). Journal of the American Oil Chemists' Society 58, 489–493.CrossRefGoogle Scholar
Forbes, R. M., Weingartner, K. E., Parker, H. M., Bell, R. R. & Erdman, J. W. (1979). Journal of Nutrition 109, 1652–1660.CrossRefGoogle Scholar
Martinez-Torres, C. & Layrisse, M. (1974). World Review Nutrition and Dietetics 19, 51–70.CrossRefGoogle Scholar
Meyer, N.R., Stuart, M. A. & Weaver, C. M. (1983). Journal of Nutrition 113, 1255–1264.CrossRefGoogle Scholar
Morck, T. A., Lynch, S. R., Skikne, B. S. & Cook, J. D. (1981). American Journal of Clinical Nutrition 34, 2630&2634.CrossRefGoogle Scholar
O'Dell, B. L. (1969). American Journal of Clinical Nutrition 22, 1315–1322.CrossRefGoogle Scholar
Roy, H. B. (1977). The Composition of Milk Substitute Diets and the Nutrient Requirements of the Pre-ruminant Calf, p. 41. Dunstable, Beds: Roche Ltd.Google Scholar
Schricker, B. R., Miller, D. D. & Van Campen, D. (1982). Journal of Nutrition 112, 1696–1705.CrossRefGoogle Scholar
Schricker, B. R., Miller, D. D. & Van Campen, D. (1983). Journal of Nutrition 113, 996–1001.CrossRefGoogle Scholar
Walker, C. D. & Welch, R. M. (1982). Proceedings of the Fourth Symposium on Trace Element Metabolism in Man and Animals, Perth, Australia, May 1981, pp. 155–157.Google Scholar
Walker, D. M. (1975). Australian Journal of Agricultural Research 26, 599–614.CrossRefGoogle Scholar
Walker, D. M. & Faichney, G. J. (1964). British Journal of Nutrition 18, 187–200.CrossRefGoogle Scholar
Welch, R. M. & Van Campen, D. (1975). Journal of Nutrition 105, 253–256.CrossRefGoogle Scholar
Widdowson, E. M. & McCance, R. A. (1943). Lancet i, 588.Google Scholar
Young, V. R. & Janghorbani, M.C. (1981). Cereal Chemistry 58, 12–18.Google Scholar