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Degradation of dry matter, crude protein, fat, crude fibre and nitrogen-free-extract in milled barley and lupin grains incubated in nylon bags in the rumen of dairy cows

Published online by Cambridge University Press:  27 March 2009

S. C. Valentine  and
B. D. Bartsch
S. C. Valentine
Affiliation:
Northfield Research Centre, South Australian Department of Agriculture, Box 1671, G.P.O. Adelaide, S.A. 5001, Australia
B. D. Bartsch
Affiliation:
Northfield Research Centre, South Australian Department of Agriculture, Box 1671, G.P.O. Adelaide, S.A. 5001, Australia
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Extract

Incubation of feed samples in nylon bags in the rumen has been used extensively to evaluate the rate and extent of dry matter, protein, starch and cellulose degradation (Mehrez & Ø0rskov, 1977; Mehrez, Ørskov & McDonald, 1977; Ganev, Ørskov & Smart, 1979; Weakley, Stern & Satler, 1983) and to predict the energy values of ruminant feeding-stuffs (Cottyn et al. 1984).

Type
Short Notes
Information
The Journal of Agricultural Science , Volume 110 , Issue 2 , April 1988 , pp. 395 - 398
Copyright
Copyright © Cambridge University Press 1988

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References

Association of Official Analytical Chemists (1984). Official Methods of Analysis. Washington: A.O.A.C.Google Scholar
Baker, R. J. & Nelder, J. A. (1978). Generalized Linear Interactive Modelling Manual.Google Scholar
Bartsch, B. D. & Valentine, S. C. (1986). Grain legumes in dairy cow nutrition. Proceedings of the Australian Society of Animal Production 16, 32–34.Google Scholar
Clarke, R. T. J. (1965). Diurnal variation in the numbers of rumen ciliate protozoa in cattle. New Zealand Journal of Agricultural Research 8, 1–9.CrossRefGoogle Scholar
Cottyn, B. G., Aerts, J. V., Vanackers, J. M., Moermans, R. J. & Buysse, F. X. (1984). The prediction of the net energy value of compound feedstuffs for dairy cattle. Animal Feed Science and Technology 11, 137–147.CrossRefGoogle Scholar
Czerkawski, J. W. & Clapperton, J. L. (1984). Fats as energy-yielding compounds in the ruminant diet. In Fats in Animal Nutrition (ed. Wiseman, J.). London: Butterworths.Google Scholar
Ganev, G.,Ørskov, E. R. & Smart, R. (1979). The effect of roughage or concentrate feeding and rumen retention time on total degradation of protein in the rumen. Journal of Agricultural Science, Cambridge 93, 651–656.CrossRefGoogle Scholar
Hill, G. D. (1977). The composition and nutritive value of lupin seed. Nutrition Abstracts and Reviews, B: Livestock Feeds and Feeding 47, 511–529.Google Scholar
Hynd, P. I., Valentine, S. C. & Bartsch, B. D. (1985). Rumen protozoa numbers in dairy cows fed barley or lupins. Proceedings of the Nutrition Society of Australia 10, 147.Google Scholar
Leng, R. A. & Nolan, J. V. (1984). Nitrogen metabolism in the rumen. Journal of Dairy Science 67, 1072–1089.CrossRefGoogle ScholarPubMed
Mehrez, A. Z. & Ørskov, E. R. (1977). A study of the artificial fibre bag technique for determining the digestibility of feeds in the rumen. Journal of Agricultural Science, Cambridge 88, 645–650.CrossRefGoogle Scholar
Mehrez, A. Z., Ørksov, E. R. & McDonald, I. (1977). Rates of rumen fermentation in relation to ammonia concentration. British Journal of Nutrition 38, 437.CrossRefGoogle ScholarPubMed
Moore, J. H., Noble, R. C., Steele, W. & Czerkawski, J. W. (1969). Differences in the metabolism of esterified and unesterified linoleic acid by rumen micro-organisms. British Journal of Nutrition 23, 869–878.CrossRefGoogle Scholar
Ørskov, E. R. & McDonald, I. (1979). The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. Journal of Agricultural Science, Cambridge 92, 499–503.CrossRefGoogle Scholar
Schwartz, H. M. & Gilchrist, F. M. C. (1975). Microbial interactions with the diet and the host animal. In Digestion and Metabolism in the Ruminant. Proceedings of the IV International Symposium of Ruminant Physiology (ed. McDonald, I. W. and Warner, A. C. I.), Armidale, N.S.W., Australia: The University of New England Publishing Unit.Google Scholar
Tilley, J. M. A. & Terry, R. A. (1963). A two-stage technique for the in vitro digestion of forage crops. Journal of the British Grassland Society 18, 104–111.CrossRefGoogle Scholar
Valentine, S. C. & Bartsch, B. D. (1987). Fermentation of hammermilled barley, luping, pea and faba bean grain in the rumen of dairy cows. Animal Feed Science and Technology 16, 261–271.CrossRefGoogle Scholar
Weakley, D. C., Stern, M. D. & Satler, L. D. (1983). Factors affecting disappearance of feed stuffs from bags suspended in the rumen. Journal of Animal Science 56, 493–507.CrossRefGoogle Scholar