Near infra-red measurement of nonstructural carbohydrates in alfalfa hay

Medidas Cercanas a Infra-Rojas de Carbohidratos no Estructurados en Heno de Alfalfa

Mayland, H.F. and Burns, J.C. and Fisher, D.S. and Shewmaker, G.E. (2001) Near infra-red measurement of nonstructural carbohydrates in alfalfa hay. pp. 404-405. In: Proc. XIX International Grassland Congress. Brazil-São Paulo-Piracicaba, 2001/02/10-21.

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Abstract

Recently documented benefits from afternoon versus
morning cut forage have encouraged laboratory reporting of
total nonstructural carbohydrate (TNC) values as part of
forage quality testing. Our objective was to determine if
infra-red spectroscopy (NIRS), which is being used in many
forage testing labs, could be reliably used to quantify forage
sugars in hay samples. We used two alfalfa (Medicago sativa
L.) sample populations that were analyzed by wet chemistry
for sugars and scanned by NIRS. The first set consisted of
field-dried hay samples that were oven dried at 70°C and the
second consisted of fresh, freeze-dried samples. TNC values
were determined more precisely with NIRS than by wet
chemistry

Item Type:	Conference or Workshop Item (Paper)
NWISRL Publication Number:	1056
Additional Information:	ID No. 09-41
Subjects:	Irrigated crops > Alfalfa Research methodology Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:56
Last Modified:	14 Nov 2016 17:14
Item ID:	945
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/945