Method for preparing crop straw feed based on composite puffing and biological processing technology

A crop straw and biological treatment technology, applied in animal feed, animal feed, application, etc., can solve the problems of inability to change the cellulose structure of crop straw, inability to directly use crop straw feed, inability to secrete cellulosic enzymes, etc., to achieve extended The shelf life of storage, the improvement of feeding value, and the effect of blocking livestock diseases

Inactive Publication Date: 2014-05-21
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the problem that the cellulose structure of crop straws cannot be changed by the method used in the existing straw feed treatment process, so that the nutritional value of crop straws as feed is not high, the utilization rate is low, the waste is large, and monogastric livestock cannot To solve the problem of secreting cellulase enzymes and not being able to directly use crop straw feed, we invented a compound puffing and biological treatment method that combines the characteristics of various types of feed processing and can not only improve the cellulose structure of crop straw, but also improve the nutritional value of feed protein. Method for preparing straw high-protein feed

Method used

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Examples

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Effect test

Embodiment 1

[0036] A method for preparing straw high-protein feed based on compound extruding and biological treatment technology, which consists of the following steps:

[0037] First, crush crop straw (such as rice, corn, wheat, bean straw, peanut straw, etc.) Reduce the degree of lignification of crop straw;

[0038]Secondly, spray 0.2% ammonia water and 2% rice bran, wheat bran and other organic nitrogen sources in an airtight container to the above-mentioned pulverized crop stalks for ammonification treatment. The carbon-nitrogen ratio is controlled at C / N=(20-40): 1 (organic nitrogen sources such as rice bran and wheat bran are all nitrogen sources, and those skilled in the art know that as long as they know the C of straw 、N content, rice bran, wheat bran C、 The N content can be obtained by simple calculation, the same below), and the moisture content of the material is controlled at about 30-75%. The purpose of ammonification treatment is to facilitate the softening of ...

Embodiment 2

[0042] A method for preparing straw high-protein feed based on compound extruding and biological treatment technology, which consists of the following steps:

[0043] First, crush crop straw (such as rice, corn, wheat, bean straw, peanut straw, etc.) Reduce the degree of lignification of crop straw;

[0044] Secondly, spray an appropriate amount of urea solution accounting for 0.18% of the weight of the straw and organic nitrogen sources such as rice bran and wheat bran accounting for 3% of the total weight of the straw to the above-mentioned crushed crop straw, and then store it in a closed container for more than 10 hours to complete the ammoniation treatment. , control the carbon-nitrogen ratio of the material at C / N=(20-40):1, and control the moisture content of the material at about 30-75%. The purpose of ammonification treatment is to facilitate the softening of fibers, improve the microstructure of straw, and improve the effect of composite puffing treatment; ...

Embodiment 3

[0048] A method for preparing straw high-protein feed based on compound extruding and biological treatment technology, which consists of the following steps:

[0049] First, crush crop straw (such as rice, corn, wheat, bean straw, peanut straw, etc.) Reduce the degree of lignification of crop straw;

[0050] Secondly, spray urea solution accounting for 0.10% of the weight of the straw and Ca(OH) solution equivalent to 2 to 10% of the weight of the straw to the above-mentioned pulverized crop straw. 2 After that, store it in a closed container for more than 10 hours to complete the ammoniation treatment, control the carbon-nitrogen ratio of the material at C / N=(20-40):1, and control the moisture content of the material at about 30-75%. The purpose of ammonification treatment is to facilitate the softening of fibers, improve the microstructure of straw, and improve the effect of compound puffing treatment. At the same time, it also provides an optimum for the metabolic ...

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Abstract

The invention relates to a method for preparing crop straw feed based on composite puffing and biological processing technology. The method is characterized by comprising the steps of crushing crop straws, chemically preprocessing the crushed crop straws, puffing the chemically preprocessed straws so as to destroy the wood fiber structure of the straws and to realize safety and no toxicity and side effect, and adding mixed strains such as yeast and lactic acid bacteria into the puffed material for solid fermentation so as to produce mycoprotein. Therefore, the content of crude protein of the straw feed can be increased from 2 to 4 percent to 8 to 12 percent, and the digestion rate can be increased from 30 to 45 percent to more than 60 percent. The method has the advantages of simplicity in process, low energy consumption, high applicability and easiness in industrialization.

Description

technical field [0001] The invention relates to a feed processing method, especially a method capable of changing the structure of lignocellulose in straw to convert it into straw drink for ruminants or high-protein feed for monogastric action, specifically a method A method for preparing straw high-protein feed based on compound puffing technology, which combines chemical pretreatment, screw puffing and biological fermentation technology. Background technique [0002] With the change of people's dietary consumption structure and the development of animal husbandry, the demand for feed is increasing. And feed production, especially the shortage of protein feed has become a global problem. In essence, the food problem in our country has gradually transformed into the problem of feed grain. An effective way to develop grain-saving animal husbandry is to develop straw animal husbandry, which is an effective way to realize the sustainable utilization of resources and the combi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/14A23K1/00
Inventor 高翔李骅熊士霞
Owner NANJING AGRICULTURAL UNIVERSITY
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