Measurements of Chemical Compositions in Corn Stover and Wheat Straw by Near-Infrared Reflectance Spectroscopy

Rapid, non-destructive methods for determining the biochemical composition of straw are crucial in ruminant diets. In this work, ground samples of corn stover (<i>n</i> = 156) and wheat straw (<i>n</i> = 135) were scanned using near-infrared spectroscopy (instrument NIRS DS25...

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Autores principales:	Tao Guo, Luming Dai, Baipeng Yan, Guisheng Lan, Fadi Li, Fei Li, Faming Pan, Fangbin Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	near-infrared reflectance spectroscopy modified partial least squares corn stover wheat straw nutritional value Veterinary medicine SF600-1100 Zoology QL1-991
Acceso en línea:	https://doaj.org/article/fc2f49ec4369488bbaa0e409d3176ecc
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spelling	oai:doaj.org-article:fc2f49ec4369488bbaa0e409d3176ecc2021-11-25T16:21:38ZMeasurements of Chemical Compositions in Corn Stover and Wheat Straw by Near-Infrared Reflectance Spectroscopy10.3390/ani111133282076-2615https://doaj.org/article/fc2f49ec4369488bbaa0e409d3176ecc2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-2615/11/11/3328https://doaj.org/toc/2076-2615Rapid, non-destructive methods for determining the biochemical composition of straw are crucial in ruminant diets. In this work, ground samples of corn stover (<i>n</i> = 156) and wheat straw (<i>n</i> = 135) were scanned using near-infrared spectroscopy (instrument NIRS DS2500). Samples were divided into two sets, with one set used for calibration (corn stover, <i>n</i> = 126; wheat straw, <i>n</i> = 108) and the remaining set used for validation (corn stover, <i>n</i> = 30; wheat straw, <i>n</i> = 27). Calibration models were developed utilizing modified partial least squares (MPLS) regression with internal cross validation. Concentrations of moisture, crude protein (CP), and neutral detergent fiber (NDF) were successfully predicted in corn stover, and CP and moisture were in wheat straw, but other nutritional components were not predicted accurately when using single-crop samples. All samples were then combined to form new calibration (<i>n</i> = 233) and validation (<i>n</i> = 58) sets comprised of both corn stover and wheat straw. For these combined samples, the CP, NDF, and ADF were predicted successfully; the coefficients of determination for calibration (RSQ<sub>C</sub>) were 0.9625, 0.8349, and 0.8745, with ratios of prediction to deviation (RPD) of 6.872, 2.210, and 2.751, respectively. The acid detergent lignin (ADL) and moisture were classified as moderately useful, with RSQ<sub>C</sub> values of 0.7939 (RPD = 2.259) and 0.8342 (RPD = 1.868), respectively. Although the prediction of hemicellulose was only useful for screening purposes (RSQ<sub>C</sub> = 0.4388, RPD = 1.085), it was concluded that NIRS is a suitable technique to rapidly evaluate the nutritional value of forage crops.Tao GuoLuming DaiBaipeng YanGuisheng LanFadi LiFei LiFaming PanFangbin WangMDPI AGarticlenear-infrared reflectance spectroscopymodified partial least squarescorn stoverwheat strawnutritional valueVeterinary medicineSF600-1100ZoologyQL1-991ENAnimals, Vol 11, Iss 3328, p 3328 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	near-infrared reflectance spectroscopy modified partial least squares corn stover wheat straw nutritional value Veterinary medicine SF600-1100 Zoology QL1-991
spellingShingle	near-infrared reflectance spectroscopy modified partial least squares corn stover wheat straw nutritional value Veterinary medicine SF600-1100 Zoology QL1-991 Tao Guo Luming Dai Baipeng Yan Guisheng Lan Fadi Li Fei Li Faming Pan Fangbin Wang Measurements of Chemical Compositions in Corn Stover and Wheat Straw by Near-Infrared Reflectance Spectroscopy
description	Rapid, non-destructive methods for determining the biochemical composition of straw are crucial in ruminant diets. In this work, ground samples of corn stover (<i>n</i> = 156) and wheat straw (<i>n</i> = 135) were scanned using near-infrared spectroscopy (instrument NIRS DS2500). Samples were divided into two sets, with one set used for calibration (corn stover, <i>n</i> = 126; wheat straw, <i>n</i> = 108) and the remaining set used for validation (corn stover, <i>n</i> = 30; wheat straw, <i>n</i> = 27). Calibration models were developed utilizing modified partial least squares (MPLS) regression with internal cross validation. Concentrations of moisture, crude protein (CP), and neutral detergent fiber (NDF) were successfully predicted in corn stover, and CP and moisture were in wheat straw, but other nutritional components were not predicted accurately when using single-crop samples. All samples were then combined to form new calibration (<i>n</i> = 233) and validation (<i>n</i> = 58) sets comprised of both corn stover and wheat straw. For these combined samples, the CP, NDF, and ADF were predicted successfully; the coefficients of determination for calibration (RSQ<sub>C</sub>) were 0.9625, 0.8349, and 0.8745, with ratios of prediction to deviation (RPD) of 6.872, 2.210, and 2.751, respectively. The acid detergent lignin (ADL) and moisture were classified as moderately useful, with RSQ<sub>C</sub> values of 0.7939 (RPD = 2.259) and 0.8342 (RPD = 1.868), respectively. Although the prediction of hemicellulose was only useful for screening purposes (RSQ<sub>C</sub> = 0.4388, RPD = 1.085), it was concluded that NIRS is a suitable technique to rapidly evaluate the nutritional value of forage crops.
format	article
author	Tao Guo Luming Dai Baipeng Yan Guisheng Lan Fadi Li Fei Li Faming Pan Fangbin Wang
author_facet	Tao Guo Luming Dai Baipeng Yan Guisheng Lan Fadi Li Fei Li Faming Pan Fangbin Wang
author_sort	Tao Guo
title	Measurements of Chemical Compositions in Corn Stover and Wheat Straw by Near-Infrared Reflectance Spectroscopy
title_short	Measurements of Chemical Compositions in Corn Stover and Wheat Straw by Near-Infrared Reflectance Spectroscopy
title_full	Measurements of Chemical Compositions in Corn Stover and Wheat Straw by Near-Infrared Reflectance Spectroscopy
title_fullStr	Measurements of Chemical Compositions in Corn Stover and Wheat Straw by Near-Infrared Reflectance Spectroscopy
title_full_unstemmed	Measurements of Chemical Compositions in Corn Stover and Wheat Straw by Near-Infrared Reflectance Spectroscopy
title_sort	measurements of chemical compositions in corn stover and wheat straw by near-infrared reflectance spectroscopy
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/fc2f49ec4369488bbaa0e409d3176ecc
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Measurements of Chemical Compositions in Corn Stover and Wheat Straw by Near-Infrared Reflectance Spectroscopy

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