Method for detecting relative feeding value of oat based on near infrared spectrum
A technology of near-infrared spectroscopy and detection methods, which is applied in the field of detection of oat relative feed value, can solve the problems of inspectors and environmental hazards, dangerous chemicals, unfavorable real-time monitoring, etc., and achieve wide source distribution, comprehensive analysis results, and effective Conducive to building and optimizing effects
Pending Publication Date: 2022-07-08
CHINA AGRI UNIV
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Problems solved by technology
However, the quality of oat hay is easily affected by factors such as variety, origin, harvest time, and processing methods.
At present, conventional chemical determination methods are commonly used in the determination of these nutritional indicators in China, and their advantages are high accuracy and precision. However, these determination methods not only have a long cycle, high cost, strong limitations, troublesome operation, and are not conducive to real-time monitoring.
Moreover, the use of dangerous chemicals will cause certain harm to the inspectors and the environment
Method used
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Embodiment 1
[0041] Embodiment 1, detect oat relative feed value based on near-infrared spectroscopy
[0042] according to figure 1 The technical roadmap shown is a method for detecting the relative forage value of oat hay, and the specific steps are as follows:
[0043] (1) Collection of samples
[0044]Collect oat hay samples of different varieties and growth stages. In order to ensure the model is convincing, the calibration samples were collected from 83 oat planting resources planted in Ningxia from 2020 to 2021. The varieties were from China, the United States, and Canada (see Table 1 for the varieties names), and 83 oats were harvested and harvested. Whole oat plant samples. Dry at 60° C. to constant weight, cut into pieces, mix well, pulverize with a high-speed pulverizer, and then pass through a 1mm sieve to obtain 83 dry samples of the whole oat plant.
[0045] Table 1. 83 Variety Names
[0046]
[0047]
[0048]
[0049] (2) Determination of chemical analysis metho...
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The invention discloses a method for detecting relative feeding value of oat based on a near infrared spectrum. The method comprises the following steps: (1) collecting N parts of oat whole plant samples of different varieties to obtain N parts of oat whole plant dry samples; (2) respectively measuring the contents of neutral detergent fibers and acid detergent fibers, and calculating the relative feeding value; (3) repeatedly scanning each sample in the N parts of oat whole plant dry samples for three times to obtain 3N parts of near infrared spectrograms; (4) removing abnormal samples in the near infrared spectrogram, taking the residual whole plant dry samples after the abnormal samples are removed as a calibration set, and taking the randomly selected whole plant dry samples as a verification set; (5) constructing a calibration model; and (6) obtaining the near infrared spectrogram of the dry sample of the whole oat plant to be detected, and obtaining the relative feeding value of the whole oat plant to be detected according to the calibration model. According to the method, the efficiency and accuracy of relative feeding value detection are improved, and the blank of near-infrared detection of the relative feeding value of the oat hay is filled.
Description
technical field [0001] The invention belongs to the field of forage grass detection, and in particular relates to a method for detecting the relative forage value of oats based on near-infrared spectroscopy. Background technique [0002] Oat (Avena sative) is an excellent grass (Gramineae) forage, which has high nutritional value and feeding value, improves the digestion and utilization rate of roughage, and is an important source of feed for livestock. Feed, maintain sustainable development of grassland animal husbandry and ecological construction play a vital role. Oat hay is palatable, high in digestible fiber and low in potassium and nitrate. In addition to improving livestock performance, it can also reduce the incidence of diseases during certain periods, such as reducing the incidence of postpartum ketosis in dairy cows. Wait. [0003] In the oat harvest season, the oat plants are made into hay for use in other seasons. ADF) and crude fat (EE) content, etc., as the...
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Patent Timeline
Login to View More IPC IPC(8): G01N21/359G01N21/3563G06K9/62G06F17/18
CPCG01N21/359G01N21/3563G06F17/18G06F18/2135Y02P60/87
Inventor 孙彦王储麻冬梅李跃胡倩楠
Owner CHINA AGRI UNIV