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Determination method for content of Italian ryegrass neutral detergent fibers

A technology for neutral washing of fibers and multiflora ryegrass, which is applied to the measurement of color/spectral characteristics, measuring devices, instruments, etc., can solve the problems of complicated operation, long time consumption and high cost, and achieves high detection efficiency, high detection accuracy, Simple to use effects

Inactive Publication Date: 2017-06-13
SICHUAN AGRI UNIV
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Problems solved by technology

At present, traditional wet chemical methods are mainly used for the determination of pasture NDF in China. There are outstanding problems such as complex operation, large error, high cost, long time consumption, and environmental pollution caused by toxic and harmful chemicals. ) or samples to screen out varieties (lines) or samples with appropriate NDF content, so finding out a method that can quickly determine the NDF content in Lolium multiflora is of great significance for breeding and forage quality control of Lolium multiflora

Method used

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  • Determination method for content of Italian ryegrass neutral detergent fibers
  • Determination method for content of Italian ryegrass neutral detergent fibers
  • Determination method for content of Italian ryegrass neutral detergent fibers

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Embodiment

[0052] A. Establish a near-infrared prediction model for the neutral detergent fiber content of Lolium multiflora; the near-infrared prediction model for the neutral detergent fiber content of Lolium multiflora is established by the following method, specifically comprising the following steps:

[0053] a. Collecting ryegrass multiflora samples, the ryegrass multiflora samples are the ryegrass multiflora samples collected in 2015-2016, including 16 national examination varieties and 22 new lines, and the collection growth period includes tillering stage and jointing stage , booting stage, heading stage, flowering stage, fruiting stage, and maturity stage. The collection parts include stems, leaves, and whole plants. Nitrogen fertilizer cultivation method, a total of 403 samples of ryegrass multiflora were killed at 105°C for 20 minutes, dried at 65°C, pulverized into powder in a micro pulverizer and passed through a 40-mesh sieve to obtain ryegrass multiflora sample powder;

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Abstract

The invention discloses a determination method for the content of Italian ryegrass neutral detergent fibers, which can be used for rapidly determining the content of the Italian ryegrass neutral detergent fibers. The determination method comprises the following steps: providing a predication model for the real content of the neutral detergent fibers in Italian ryegrass based on a near infrared spectroscopy; collecting a near infrared original spectrum of a sample on the basis of the known real content of a lot of samples; establishing a quantitative analysis predication model for the content of the Italian ryegrass neutral detergent fibers based on the near infrared spectroscopy and a chemometrics method; pre-treating to-be-detected Italian ryegrass samples to obtain the to-be-detected Italian ryegrass sample powder; collecting the near infrared original spectrum, wherein the time of a spectrum collection process is short; and detecting after collecting the near infrared original spectrum. The determination method has the characteristics of simplicity in operation, rapidness in detection, high detection efficiency, high detection precision and the like. The determination method is suitable for popularization and application in the field of pasture nutritional quality evaluation.

Description

technical field [0001] The invention relates to the field of forage nutritional quality evaluation, in particular to a method for measuring the neutral detergent fiber content of Lolium multiflora. Background technique [0002] Multifloral ryegrass (Lolium multiflorum Lam.) is an annual or perennial forage grass belonging to the Gramineae ryegrass family. It is suitable for growing in warm and humid regions. It is one of the excellent forage grasses with world cultivation significance. There are large areas of cultivation. In recent years, with the adjustment of the national agricultural industry structure, herbivorous animal husbandry has developed rapidly. Due to its high yield, strong growth in winter and spring, strong adaptability, and rich nutritional value, ryegrass multiflora has solved the problem of livestock feeding in winter and spring in southern my country. The problem of insufficient grass has played an extremely important role in the crop rotation of grain an...

Claims

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Application Information

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IPC IPC(8): G01N21/359G01N21/3563G01N21/35
CPCG01N21/35G01N21/3563G01N21/359G01N2021/3572G01N2021/3595
Inventor 张新全杨忠富马啸张玉黄琳凯黄婷潘玲汪霞
Owner SICHUAN AGRI UNIV
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