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The in situ degradability of dry matter, neutral detergent fibre and starch in whole-crop wheat harvested at three stages of maturity

Published online by Cambridge University Press:  05 November 2021

T.C. Moos
Affiliation:
Centre for Dairy Research, Department of Agriculture, The University of Reading, Earley Gate, Reading RG6 6AT, UK
J.D. Sutton
Affiliation:
Centre for Dairy Research, Department of Agriculture, The University of Reading, Earley Gate, Reading RG6 6AT, UK
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Extract

The choice of optimal stage of maturity at harvest for whole-crop wheat remains controversial. Problems of aerobic stability with crops harvested and ensiled at an early stage led to increased interest in harvesting at a later stage and preserving the crop with urea. However recent studies have shown low starch and fibre digestibility with such crops when fed to lactating dairy cows (Sutton et al.,1991). The purpose of the present work was to determine the effect of harvesting wheat at three stages of maturity on the in situ degradability of dry matter (DM), neutral detergent fibre (NDF) and starch.

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Copyright
Copyright © The British Society of Animal Science 1998

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References

Hili, J., and Leaver, D. 1993. The intake, digestibility and rate of passage of whole crop wheat and grass silage by growing heifers. Animal Production 56: 443.Google Scholar
Ørskov, E.R., and 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: 499503.10.1017/S0021859600063048CrossRefGoogle Scholar
Sutton, J.D., Abdalla, A.L., Phipps, R.H., Cammell, S.B. and Humphries, D. J. 1997. The effect of replacement of grass silage by increasing proportions of urea-treated whole-crop wheat on food intake and apparent digestibility and milk production by daily cows. Animal Science 65: 343351.10.1017/S1357729800008547CrossRefGoogle Scholar

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