The study aimed to evaluate the near infrared spectroscopy (NIRS) technique potential for predicting the chemical composition of sorghum. One hundred thirty two samples of four sorghum hybrids: AG212 (tall size), AG2002 (tall size), AG 2005 (dual purpose) and AG213 (tall size) were used in the analyses. The chemical composition was evaluated for the following fractions: dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), in vitro dry matter digestibility (IVDMD) and carboydrates (CHO). The coefficients of determination (R²) for the fractions DM, CP, NDF, ADF, IVDMD and CHO were: 95.8, 99.5, 96.4, 98.1, 93.1 and 98.7%, respectively. Low sec-error and high coefficient of determination were observed for the absorbance treatment.
sorghum; chemical composition; near infrared spectroscopy; vitro digestibility
