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Method for predicting dry matter digestion rate and metabolic energy of grass

A technology of dry matter and digestibility, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as prediction methods of digestibility and metabolic energy of different forages that have not been proposed, and achieve an optimized prediction model, simple and convenient operation, and high accuracy high effect

Inactive Publication Date: 2013-10-16
TROPICAL CORP STRAIN RESOURCE INST CHINESE ACAD OF TROPICAL AGRI SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no prediction method has been proposed for the digestibility and metabolizable energy of different pastures

Method used

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  • Method for predicting dry matter digestion rate and metabolic energy of grass
  • Method for predicting dry matter digestion rate and metabolic energy of grass
  • Method for predicting dry matter digestion rate and metabolic energy of grass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Select 10 kinds of leguminous forages, and measure their crude protein CP (%), crude fat EE (%), neutral detergent fiber NDF (%), acid detergent fiber ADF (%), calcium Ca (%), phosphorus P ( %) content, total energy GE (MJ / kg) content. And use the same material to carry out animal digestion and metabolism test, measure its dry matter digestibility DMD (%) and metabolizable energy ME (MJ / kg). Through multiple linear regression analysis, the regression coefficient was obtained, so as to obtain the prediction equation of dry matter digestibility DMD and metabolizable energy ME (Table 1, Table 2).

[0028] Table 1 Regression analysis for prediction of dry matter digestibility based on nutrient composition (leguminous forages)

[0029]

[0030] Table 2 Predictive regression analysis of metabolizable energy based on nutrient components (legumes)

[0031]

[0032]

[0033] Among the 10 groups of data on the dry matter digestibility of leguminous forages, the relativ...

Embodiment 2

[0036] Select 10 kinds of gramineous forages, and measure their crude protein CP (%), crude fat EE (%), neutral detergent fiber NDF (%), acid detergent fiber ADF (%), calcium Ca (%), phosphorus P ( %) content, total energy GE (MJ / kg) content. And use the same material to carry out animal digestion and metabolism test, measure its dry matter digestibility DMD (%) and metabolizable energy ME (MJ / kg). Through multiple linear regression analysis, the regression coefficients were obtained, so as to obtain the prediction equations of dry matter digestibility DMD and metabolizable energy ME (Table 3, Table 4).

[0037] Table 3 Predictive regression analysis of dry matter digestibility based on nutrient composition (grasses)

[0038]

[0039] Table 4 Predictive regression analysis of metabolizable energy based on nutrient components (grasses)

[0040]

[0041]

[0042] Among the 10 groups of data on the dry matter digestibility of gramineous grasses, the relative error betw...

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Abstract

The invention discloses a method for predicting the dry matter digestion rate and metabolic energy of grass, belonging to the field of ruminant feed and nutrition. The method comprises the following steps of: measuring corresponding nutritional ingredients of different types of grass; taking the measured results of the nutritional ingredients into corresponding dry matter digestion rate and metabolic energy prediction models; and calculating the dry matter digestion rate and metabolic energy of the grass. The method has the advantages of simplicity and convenience in operation, high speed, high efficiency and the like, can be used for rapid evaluation on nutritive value of ruminant roughage forage and forage processing production and has certain application value for reasonably utilizing roughage forage resources to reduce breeding components.

Description

technical field [0001] The invention belongs to the technical field of ruminant feed and nutrition, and relates to a method for predicting the digestibility and metabolic energy of forage dry matter. Background technique [0002] The nutritional value of feed depends on the content of its nutrients on the one hand, and on the digestion and metabolism efficiency of nutrients in animals on the other hand. The dry matter digestibility and metabolizable energy of feed are one of the most important indicators to evaluate the nutritional value of ruminant feed. Traditional feed evaluation methods mostly use the digestion and metabolism tests of selected animals to measure feed digestibility and metabolizable energy. Although the results are true and reliable, a certain number of experimental animals is required, and the operation steps are cumbersome and time-consuming. In addition, the cost is too high and the feasibility is low to conduct animal digestion and metabolism tests o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 李茂周汉林字学娟侯冠彧
Owner TROPICAL CORP STRAIN RESOURCE INST CHINESE ACAD OF TROPICAL AGRI SCI
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