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Method for fast evaluating corn poultry metabolic energy through physicochemical indexes

A physical and chemical index, corn technology, applied in applications, animal feed, animal feed, etc., can solve problems such as inability to measure, excess energy, and long time required for measurement, so as to ensure the performance of poultry production and improve accuracy. Effect

Active Publication Date: 2013-09-25
SHANDONG AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of poultry feed preparation, the metabolizable energy of corn, as the main index to measure its feeding value, is basically unable to be measured except for special research due to many reasons such as the long time required for the measurement and the high requirements for instruments. Formula design based on the metabolizable energy value calibrated in the feed ingredient database
The metabolizable energy of corn is significantly related to its variety, planting area, processing method, etc., and has a large range of variation. During production, formula design is based on fixed values ​​in the database, which can easily cause excess or insufficient energy in the formulated feed, resulting in production losses.

Method used

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  • Method for fast evaluating corn poultry metabolic energy through physicochemical indexes
  • Method for fast evaluating corn poultry metabolic energy through physicochemical indexes
  • Method for fast evaluating corn poultry metabolic energy through physicochemical indexes

Examples

Experimental program
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Effect test

Embodiment 1

[0009] 1. Collect five kinds of corn samples, measure their neutral detergent fiber (NDF) and bulk density volume (V) respectively, and bring the measured results into the model AME (kcal / kg)=-12.39NDF+587.22V+2600.07 to obtain corn Predicted values ​​of metabolizable energy (see Table 1).

[0010] In order to evaluate the coincidence between the predicted value and the real value of the metabolizable energy of corn, the measured values ​​of five kinds of metabolizable energy of corn were measured according to the following method: using adult healthy Hailan brown roosters with similar weight, placed in a single cage and a single bird in the environment-controlled metabolic testing room Breeding, the house temperature is 24°C±3°C, the light intensity is 20LX, and the daily light time is 16h. During the non-experimental period, feed the full-price compound diet that can meet the physiological needs of growing hens, and drink water and feed freely. Before the start of the test,...

Embodiment 2

[0016] 1. In order to verify the practicability of the prediction method constructed by the present invention, and compare it with the method generally used in production to carry out feed compounding with the corn metabolizable energy value in the database, the following tests are carried out:

[0017] Collect two kinds of corn samples (1# and 2#) with different origins and large differences in apparent shape, measure the neutral detergent fiber (NDF) and bulk density (V) of the two kinds of corn respectively, and bring the measured results into Model AME (kcal / kg)=-12.39NDF+587.22V+2600.07. This value was used as the metabolizable energy value of corn in the experimental group, and the feed for the control group was prepared according to the data of the metabolizable energy value of corn in the Chinese Feed Composition and Nutritional Value Table (2010).

[0018] 600 1-day-old AA broilers were selected for the test and randomly divided into 4 groups, namely two corn metabol...

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Abstract

The invention relates to a method for fast evaluating corn poultry metabolic energy through physicochemical indexes. The method comprises determining neutral washing fibers (NDF), volume-weight volume (V) and an actually measured metabolic energy value of a plurality of corn samples, conducting regression analysis on determined results and creating a mathematical model for fast evaluating the poultry metabolic energy value. The mathematical model constructed by the method can accurately forecast the corn poultry metabolic energy, and the forecasted corn poultry metabolic energy value can better guarantee accuracy of poultry feed cooperation and exertion of production performance compared with data in a feed composition and trophic value table.

Description

(1) Technical field [0001] The invention relates to a method for quickly assessing the metabolizable energy of poultry by using the physical and chemical indicators of corn, and belongs to the technical field of feed. (2) Background technology [0002] Corn as an energy feed plays an important role in livestock and poultry farming. However, in the process of poultry feed preparation, the metabolizable energy of corn, as the main index to measure its feeding value, is basically unable to be measured except for special research due to many reasons such as the long time required for the measurement and the high requirements for instruments. Formula design was carried out according to the calibrated metabolizable energy value in the feed ingredient database. The metabolizable energy of corn is significantly related to its variety, planting area, processing method, etc., and has a large range of variation. During production, formula design is based on fixed values ​​in the datab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/02A23K1/18
Inventor 林海焦洪超宋志刚王伟刚
Owner SHANDONG AGRICULTURAL UNIVERSITY
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