Application of FT-NIR spectroscopy for evaluation of feeds digestibility by analysis of feces chemical composition

• Main Authors: Semyon BIBIKOV, Sergii SHAPOVALOV, Elena KORNILOVA
• Format: Article
• Language: English
• Published: Moldova State Agrarian University 2020-12-01
• Series: Stiinta Agricola
• Subjects: pigs; feces; feed digestibility; infrared spectroscopy
• Online Access: https://sa.uasm.md/index.php?journal=sa&page=article&op=view&path%5B%5D=727&path%5B%5D=730

In this study, we demonstrated the possibility of rapid and non-destructive quantification of crude protein, fat, fiber and moisture content in pigs’ feces by Fourier transform near-infrared (FT-NIR) spectroscopy. The predictions of developed partial least-squares (PLS) regression calibration models do not exceed the error of used arbitrary method. The FT-NIR models demonstrate satisfactory correlation coefficients (R2 >0.81) and residual predictive deviation (RPD) values from 2.3 to 7.5, depending on measured parameter. Obtained results indicate the possibility of use FT-NIR spectroscopy as a simple tool for monitoring feed’s digestibility and allowing applying timely corrections to diets.