Rapid and Simultaneous Determination of Feed Nutritive Values by Means of Near Infrared Spectroscopy

Abstract

Feed plays a significant role in livestock production worldwide. Digestibility of feed such as in vitro dry matter digestibility (IVDMD) and in vitro organic matter digestibility (IVOMD) as well as the fractions of crude fiber such as neutral detergent fiber (NDF) and acid detergent fiber (ADF) can be used as indicators of feed quality. To determine these nutritive parameters, several methods based on solvent extraction and other laboratory analyses are widely employed which are normally time consuming and may cause pollution since this analysis involves chemical materials. Near infrared spectroscopy (NIRS) is one of rapid alternative methods that can be considered to be applied due to its advantages. Therefore, the main objective of this present study is to apply NIRS in determining IVDMD, IVOMD, NDF, and ADF of animal feed samples simultaneously. Reflectance spectra were acquired for animal feed samples in wavelength range from 1000 to 2500 nm. Actual quality and nutritive values were measured by standard laboratory method. Spectra data were corrected by baseline shift correction (BSC), standard normal variate (SNV), and de-trending (DT). Prediction models were developed using principal component regression. Superior results for IVDMD, IVOMD, and NDF predictions were achieved using SNV with correlation coefficient (r) and RPD index of 0.93 and 2.78 for IVDMD, 0.90 and 2.35 for IVOMD, and 0.89 and 2.31 for NDF, respectively. ADF nutritive value was predicted accurately using DT spectrum with r and RPD index of 0.94 and 3.00, respectively. It may be concluded that NIRS can be used and applied as a rapid and simultaneous method in determining nutritive values of feed samples.

Prediction Accuracy Improvement of Indonesian Dairy Cattle Fiber Feed Compositions Using Near-Infrared Reflectance Spectroscopy Local Database

“…NIRS method has advantages for its fast, low cost, non-destructive, and no chemical requirements for solvents or reagents (Parrini et al, 2018). The NIRS method has been used in analyzing several chemical parameters (Pierna et al, 2011) for several purposes such as moisture content during the drying process (Phetpan et al, 2019), sugar content in potatoes (Rady & Guyer, 2015), total phenols, condensed tannins, and 3-deoxyanthocyanidins in sorghum grain (Dykes et al, 2014), and the digestibility of feedstuffs (Samadi et al, 2018).…”

Selected Instrumental Techniques Applied in Food and Feed: Quality, Safety and Adulteration Analysis

“…Alternatively, it will require live animals and a marker (iron oxide is usually used as a fecal marker) to perform metabolism assays. In vitro, dry and organic matter digestibility, and neutral and acid detergent fiber (both indicators useful to assess feed quality) were successfully evaluated by Samadi and coworkers [ 262 ]. The digestibility assays’ wet chemistry counterparts usually require two individual 48 h steps for fermentation and enzymatic digestion.…”

Analisa Gula Kristal Putih Secara Cepat Menggunakan Near Infrared Spectroscopy

“…Near infrared spectorscopy (NIRS) merupakan metode handal untuk analisis berbagai parameter yang dikehendaki. Berbagai sektor industri seperti petrokimia (Larrechi & Callao, 2003), minuman (Rodriguez-Saona et al, 2001), susu (Cattaneo & Holroyd, 2013), makanan (Dodds & Heath, 2005, farmasi (Carlsson & Janné, 1995) serta pakan (Samadi et al, 2018) telah mengembangkan dan mengaplikasikan instrumen NIRS. Keunggulan analisis menggunakan NIRS secara rutin dibandingkan dengan analisis konvensional (kimia) adalah biaya yang rendah (tenaga kerja dan utilitas atau bahan kimia), kecepatan serta kemudahan analisis karena persiapan sampel tanpa merusak (nondestructive) (Day & Fearn, 1982;Blanco & Villarroya, 2002;Pasquini, 2003;O'Shea et al, 2011).…”