Prediction of chemical composition of forage paddy rice using near infrared reflectance spectroscopy
2005
Xu, C.(National Inst. of Livestock and Grassland Science, Tsukuba, Ibaraki (Japan)) | Cai, Y. | Amari, M. | Murai, M. | Ogawa, M.
Near infrared reflectance spectroscopy (NIRS) was used to predict chemical composition of forage paddy rice samples (n=191). A hundred and sixteen samples were selected for calibration development, and remaining samples were used for equation validation. NIRS accurately predicted the crude protein (CP), dry matter (DM), Organic matter (OM), organic cellular contents (OCC), organic cell wall (OCW), and low digestible fiber (Ob) content of these samples, but prediction of high digestible fiber (Oa) was markedly less accurate. The coefficients of determination and standard errors of calibration for CP, DM, OM, OCW, OCC and Ob were as follows : 0.98 and 0.33, 0.98 and 0.27, 0.95 and 0.54, 0.93 and 2.47, 0.94 and 2.64, 0.94 and 2.08. The present result in this study indicated that CP, DM, OM, OCW and Ob contents in forage paddy rice can be predicted by using NIRS techniques with an acceptable accuracy.
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