Publication Date

1993

Description

Near-infrared (NIR) instruments are now available that will analyse forage (hay, silage and pasture) for crude protein, fibre constituents and some elements without drying or grinding the sample. The accuracy of this new method of sample analysis is not quite as good as the accuracy of NIR analyses of dried and ground samples. However, given the sampling error associated with obtaining a representative forage sample from a load of hay, silo or pasture, this new method of analysis can provide useful information. In addition, instruments scanning the visible and the near-infrared spectrum can quantify forage colour as well as composition. These advancements in spectroscopy will improve our analytical capabilities in the forage industry.

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Analysis of Undried, Unground Forage with a Visible-Near-Infrared Monochromator

Near-infrared (NIR) instruments are now available that will analyse forage (hay, silage and pasture) for crude protein, fibre constituents and some elements without drying or grinding the sample. The accuracy of this new method of sample analysis is not quite as good as the accuracy of NIR analyses of dried and ground samples. However, given the sampling error associated with obtaining a representative forage sample from a load of hay, silo or pasture, this new method of analysis can provide useful information. In addition, instruments scanning the visible and the near-infrared spectrum can quantify forage colour as well as composition. These advancements in spectroscopy will improve our analytical capabilities in the forage industry.