DOI: 10.11118/978-80-7701-093-1-0178
THE POSSIBILITIES OF DETERMINING THE NUTRITIONAL VALUE OF PRESERVED SORGHUM SILAGE USING NIRS TECHNOLOGY
- Menšík, L.1, Nerušil, P.1, Mrkvicová, E.2, Jambor, V.3, Křížová, L.4
- 1 Czech Agrifood Research Center (CARC), Drnovská 507/73, 161 00 Praha 6 – Ruzyně, Czech Republic
- 2 Mendel University in Brno, Zemědělská 1665/1, 613 00 Brno, Czech Republic
- 3 NutriVet Ltd., Vídeňská 1023, 691 23 Pohořelice, Czech Republic
- 4 Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
The aim of the paper is to present newly verified progressive methods for evaluating the nutritional value of dry feed (standard ground sample, particle size <1 mm="" of="" preserved="" two-coloured="" sorghum="" silage="" i="">Sorghum bicolor (L.) Moench.) in terms of the following parameters: CP, fibre, fat, ash, ADF, NDF, cellulose, ADL, DMD and OMD, using near-infrared spectroscopy (NIRS). The parameters of the sorghum silage were determined using classical laboratory methods and measured simultaneously using NIRS. Calibration equations were developed using multidimensional regression methods (PLSR, MPLSR). The values of the coefficient of determination (R²) of the calibration (validation) ranged from 0.83 to 0.96 (0.77 to 0.97) for the nutritional value parameters. Only a small amount of sample material (approx. 5–10 g) is required for analysis using NIRS. Not only is the measurement very fast (sample determination takes approx. 2–5 minutes), it is also sufficiently accurate.
Keywords: sorghum silage, NIRS
pages: 178-179, Published: 2026, online: 2026
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