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The use of near infra-red reflectance spectroscopy (nirs) for the evaluation of forages. The application to undried silage

Published online by Cambridge University Press:  24 November 2017

C W Baker  and
D I Givens
C W Baker
Affiliation:
ADAS Analytical Chemistry Department, Starcross, Exeter EX6 8PE
D I Givens
Affiliation:
ADAS Feed Evaluation Unit, Stratford-upon-Avon CV37 9RQ
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Extract

NIRS is now a familiar tool in the assessment of forage and feedingstuff quality. Recently NIRS has been applied to the direct prediction of in vivo organic matter digestibility (OMD) of grass silages (Barber et al 1990) and cereal straws (Givens et al 1991).

The Agricultural Development and Advisory Service (ADAS) has been using NIRS to predict the in vivo OMD of oven dried silages on a routine basis since 1989, and it has proved to be reliable, accurate and rapid. In addition to OMD, crude protein (CP), and neutral detergent fibre (NDF), are routinely predicted by NIRS, leaving pH, ammonia, dry matter and ash still to be determined by wet chemistry methods.

Type
Rumen Metabolism
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1992 , March 1992 , pp. 221
Copyright
Copyright © The British Society of Animal Production 1992

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References

Barber, G D, Givens, D I, Kridis, M S, Offer, N W, and Murray, I (1990). Anim. Feed Sci. Technol. 28, 115–128 Google Scholar
Barnes, R J, Dhanoa, M S, and Lister, S J (1989). Appl. Spec. 42, 727–777 Google Scholar
Givens, D I, Baker, C W, Moss, , Angela, R, and Adamson, A H (1991). Anim. Feed Sci. Technol. 35, 83–94 CrossRefGoogle Scholar