Estimation of dry matter, crude protein and starch values in mixed feeds by near-infrared reflectance (NIR) spectroscopy

Authors : Hasan ATALAY, Fatih KAHRIMAN, Firat ALATÜRK

Pages : 125-130

Doi:10.30704/http-www-jivs-net.786427

View : 14 | Download : 5

Publication Date : 2020-12-30

Article Type : Research Paper

Abstract :This study aims to determine the levels of dry matter, crude protein, and starch widely used in ruminant feeding, in dairy and beef cattle mixed feeds based on the measurements taken from two different Near-Infrared Reflectance insert ignore into journalissuearticles values(NIR); devices. The chemical analyses of the mixed feed samples used in the study were performed and the reference values insert ignore into journalissuearticles values(REF); were determined. In the research, two different NIR devices, a Benchtop-NIR and a Portable-NIR, were used and the nutrient values of mixed feeds were analyzed with these devices. It was determined that there were statistically significant differences between the reference method and NIR results for protein and starch content. Although the differences between the mean values were significant, the reference analyses results and NIR measurements were similar in some ways. According to the correlation coefficients calculated between the reference analyses with Benchtop-NIR and Portable-NIR devices, there was a weak correlation in the dry matter content, while a strong positive correlation existed in the protein insert ignore into journalissuearticles values(r = 0.72 for Portable, r = 0.93 for Benchtop NIR); and starch content. In the study, 30 different mixed feed insert ignore into journalissuearticles values(dairy cattle feed, beef cattle feed); values that are commonly used in ruminant feeding were measured.
Keywords : Feed, Starch, Near İnfrared Reflectance NIR,