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Predicting the voluntary intake of barley straw with near infrared reflectance spectroscopy (NIRS)

Published online by Cambridge University Press:  21 November 2017

A V Goodchild ,
F Jaby El-Haramein  and
T T Treacher
A V Goodchild
Affiliation:
International Center for Agricultural Research in the Dry Areas, P.O. Box 5466, Aleppo, Syria
F Jaby El-Haramein
Affiliation:
International Center for Agricultural Research in the Dry Areas, P.O. Box 5466, Aleppo, Syria
T T Treacher
Affiliation:
International Center for Agricultural Research in the Dry Areas, P.O. Box 5466, Aleppo, Syria
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Extract

In developing countries, straws, stovers and stubbles provide a large proportion of the nutrient intake of ruminants. Cereal breeders working for these countries need a rapid test to predict the nutritional value of straw. An important component of nutritional value of straw is voluntary intake (Goodchild et al. 1992). Voluntary intake (DMT) is usually measured in samples of straw weighing 100 kg or more: in contrast, only a few plants weighing tens of grams are available for each genotype in the early stages of breeding. Indirect methods of estimating voluntary intake, like in vitro gas production, are available but relatively costly. For these reasons, and because selecting for grain yield and stem stiffness has been a priority in developed countries, breeders have tended to ignore straw quality.

Type
Ruminant Nutrition and Digestion
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1994 , March 1994 , pp. 111
Copyright
Copyright © The British Society of Animal Production 1994

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References

Barnes, R.J.; Dhanoa, M.S. and Lister, S.J. 1989. Standard normal variatc transformation and de-trending of near-infrared diffuse reflectance spectra. Applied Spectroscopy 43: 772–777.Google Scholar
Goodchild, A., Coccarelli, S., Grando, S., Hamblin, J., Treacher, T., Thomson, E. and Rihawi, S. 1992. Breeding for Cereal Straw Quality. Paper presented at the International Conference on Manipulation of Rumen Micro-Organisms to Improve Efficiency of Fermentation and Ruminant Production, Alexandria, Egypt, 20–23 September 1992.Google Scholar