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Comparative effects of wheat bran and barley husk on nutrient utilization in rats

1. Protein and energy

Published online by Cambridge University Press:  24 July 2007

Carmen M. Donangelo  and
B. O. Eggum
Carmen M. Donangelo
Affiliation:
National Institute of Animal Science, Animal Physiology and Biochemistry, 25 Rolighedsvej, DK-1958 Copenhagen V, Denmark
B. O. Eggum
Affiliation:
National Institute of Animal Science, Animal Physiology and Biochemistry, 25 Rolighedsvej, DK-1958 Copenhagen V, Denmark
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Abstract

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I. The present work with growing rats was undertaken to compare the effect of wheat bran and barley husk on nutrient bioavailability. The experiment involved a total of nine dietary treatments consisting of a control group, without wheat bran or barley husk, and two series of four groups with increasing amounts of fibre from 50 to 117 g/kg dry matter (DM) from the two fibre sources. Dietary nitrogen concentration was kept constant at 15 gN/kg DM by adjusting the diets with an N-free mixture. Protein sources were casein, fortified with methionine and white wheat flour. True protein digestibility (TD), biological value (BV), net protein utilization (NPU) and digestible energy (DE) were estimated.

2. TD decreased when total dietary fibre (TDF) increased, the effect being greater in the case of wheat bran. The difference in response can be explained by the larger N contribution from bran than from barley husk. N from barley husk was actually digested less than N from wheat bran.

3. Changes in TD due to fibre were small, both for wheat and barley husk. It was concluded that decreased TD with fibre at moderate levels was due to poor digestibility of the N associated with the fibre source rather than decreased digestibility of N from other dietary components.

4. BV was only marginally affected by the fibre levels, indicating that the relatively high lysine content in both wheat bran and barley husk had a low availability.

5. Wheat bran and barley husk showed almost the same negative effect on DE and DM digestibility (DMD). DMD correlated significantly with DE, demonstrating that DMD is a simple and convenient means of monitoring DE.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 54 , Issue 3 , November 1985 , pp. 741 - 751
Copyright
Copyright © The Nutrition Society 1985

References

Asp, N.-G., Johansson, C.-G., Hallmer, H. S. & Siljeström, M. (1983). Journal of Agricultural and Food Chemistry 31, 476–482.CrossRefGoogle Scholar
Association of Official Analytical Chemists. (1975). Official Methods of Analysis, 11th ed. Washington, DC: AOAC.Google Scholar
Bach Knudsen, K. E. (1982). Zeitschrift für Tierphysiologie, Tierernährung und Futtermittelkunde 48, 90–104.CrossRefGoogle Scholar
Bach Knudsen, K. E., Wolstrup, J. & Eggum, B. O. (1983). Zeitschrift fü Tierphysiologie, Tierernährung und Fluttermittelkunde 49, 173–180.CrossRefGoogle Scholar
Beames, R. M. & Eggum, B. O. (1981). British Journal of Nutrition 46, 301–313.CrossRefGoogle Scholar
Betschart, A. A., Hudson, C. A. & Irving, D. W. (1982). 7th World Cereal and Bread Congress, Prague.Google Scholar
Eggum, B. O. (1973). Report no. 406, National Institute of Animal Science, Copenhagen.Google Scholar
Eggum, B. O., Beames, R. M. & Bach Knudsen, K. E. (1985). British Journal of Nutrition 54, 727–739.CrossRefGoogle Scholar
Eggum, B. O., Beames, R. M., Wolstrup, J. & Bach Knudsen, K. E. (1984). British Journal of Nutrition 51, 305–314.CrossRefGoogle Scholar
Eggum, B. O. & Christensen, K. D. (1975). Breeding for Seed Protein Improvement Using Nuclear Techniques, Vienna: International Atomic Energy Agency.Google Scholar
Frølich, W. (1984). Bioavailability of minerals from unrefined cereal products. In vitro and in vivo studies. phd thesis, University of Lund.Google Scholar
Gill, J. L. (1978). Design and Analysis of Experiments in the Animal and Medical Sciences, vol 1. Iowa: Iowa State University Press.Google Scholar
Kelsay, J. L. (1978). American Journal of Clinical Nutrition 31, 142–159.CrossRefGoogle Scholar
MacRae, J. C. & Armstrong, D. G. (1968). Journal of the Science of Food and Agriculture 19, 578–581.CrossRefGoogle Scholar
Mason, V. C., Bech-Andersen, S. & Rudemo, M. (1980). Zeiischrift für Tierphysiologie, Tierernährung und Futtermittelkunde 43, 146–164.CrossRefGoogle Scholar
Munck, L. (1981). In Cereals: a Renewable Resource. Theory and Practice, pp. 427–459 [Pomeranz, Y., and Munck, L., editors]. Minnesota: American Association of Cereal Chemists.Google Scholar
Nyman, M. S. & Asp, N.-G. (1982). British Journal of Nutrition 47, 357–366.CrossRefGoogle Scholar
Nyman, N., Siljeström, M., Pedersen, B., Bach Knudsen, K. E., Asp, N.-G., Johansson, C.-G. & Eggum, B. O. (1984). Cereal Chemistry 61, 14–19.Google Scholar
O'Dell, B. L., Boland, A. R. & Koritzohann, S. R. (1972). Journal of Agriculture and Food Chemistry 20, 718–721.CrossRefGoogle Scholar
Pedersen, B. & Eggum, B. O. (1983 a). Qualitas Plantarum Plant Foods for Human Nutrition 33, 51–61.CrossRefGoogle Scholar
Pedersen, B. & Eggum, B. O. (1983 b). Qualitas Plantarum Plant Foods for Human Nutrition 33, 99–112.CrossRefGoogle Scholar
Sauer, W. C., Eggum, B. O. & Jacobsen, I. (1979). Archiv für Tierernährung 29, 533–540.CrossRefGoogle Scholar
Shah, N., Atallah, M. T., Mahoney, R. R. & Pellett, P. L. (1982). Journal of Nutrition 112, 658–666.CrossRefGoogle Scholar
Stoldt, W. (1952). Fette, Seifen, Anstrichmittel 54, 206–207.CrossRefGoogle Scholar
Trowell, H. (1976). American Journal of Clinical Nutrition 29, 417–427.CrossRefGoogle Scholar
Weidner, K. & Jakobsen, P. E. (1962). øvelsesvejledning for landbrugs-, mejeribrugs- og licentiatstuderende, p. 69. Copenhagen: Royal Veterinary and Agricultural University.Google Scholar