Prediction of the chemical composition and fermentation quality of winter rye slages by near infrared spectroscopy
This study was carried out to explore the accuracy of near infrared spectroscopy (NIRS) for the prediction of chemical parameters of fresh winter rye silages.A representative population of 185 fresh winter rye silages was used as database for studying the possibilities of NIRS to predict chemical composition.Samples of silage were scanned at 1nm intervals over the wavelength range 680-2,500 nm and the optical data recorded as log 1/Reflectance (log l/R) and scanned in fresh condition.NIRS calibrations were developed by means of partial least-squares (PLS) regression.NIRS analysis of fresh winter rye silages provided accurate predictions of moisture, acid detergent fiber (ADF), neutral detergent fiber (NDF), crude protein (CP) and pH as well as lactic acid content with correlation coefficients of cross-validation (R2cv) of 0.98, 0.95, 0.96, 0.76, 0.88 and 0.71 respectively and standard error of cross-validation (SECV) of 1.51, 2.34, 2.63, 1.03, 0.19 % DM and 0.46 % DM respectively Results of this experiment showed the possibility of NIRS method to predict the chemical parameters of winter rye silages as routine analysis method in feeding value evaluation and for farmer advice.
near infrared reflectance spectroscopy rye silage fermentation quality
Hyung Soo Park Ki Won Lee Sang Hoon Lee Jong Geun Kim Ki Choon Choi Ji Hea Kim Gi Jun Choi
Grassland & Forages Division, National Institute of Animal Science, RDA, 330-801, South Korea Research Institute of Eco-friendly Livestock Science, INSTITUTE of GREEN BIO SCIENCE & TECHNOLOGY, S
国际会议
The 5th China-Japan-Korea Grassland Conference(第五届中-日-韩国际草地会议)
长春
英文
135-136
2014-08-20（万方平台首次上网日期，不代表论文的发表时间）