Gas eruption-based method for preparing feed with high nutritive value by crop straws

A crop straw and high-nutrition technology, applied in animal feed, animal feed, application, etc., can solve the problems of inability to change the cellulose structure of crop straw, low nutritional value, low utilization rate, etc., and achieve safety, non-toxic side effects, palatable The effect of good sex and increased feed intake

Inactive Publication Date: 2013-01-16
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems that conventional physical and chemical methods cannot change the cellulose structure of crop straws, so that the nutritional value of crop straws as feed is not high, the utilization rate is low, and the waste is large. Method for preparing feed with high nutritional value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing crop stalk feed by steam explosion, which consists of the following steps:

[0028] First, crush crop straw (such as rice, corn, wheat, bean straw, peanut straw, etc.) Reduce the lignification degree of crop straw;

[0029] Secondly, spray 3-10% ammonia water of crop stalk weight to the above-mentioned crushed crop stalks, adjust the moisture content of the stalks to an appropriate range, that is, control the moisture content at about 30-60%, and then place the short strips of stalks sprayed with ammonia water Carry out conventional ammonification chemical treatment at room temperature in a closed container, and the treatment time is not less than 24 hours at room temperature. If the treatment temperature is increased, the treatment time can be shortened; the purpose of ammonification treatment is to help soften the fiber and improve the straw. Microstructure, improve the treatment effect of steam explosion;

[0030] Thirdly, put the chemically ...

Embodiment 2

[0032] A method for preparing crop stalk feed by steam explosion, which consists of the following steps:

[0033] First, crush crop straw (such as rice, corn, wheat, bean straw, peanut straw, etc.) Reduce the lignification degree of crop straw;

[0034] Secondly, spray urea accounting for 1-8% of the weight of the crop straw to the above-mentioned crushed crop straw, adjust the moisture content of the straw to an appropriate range, that is, control the moisture content at about 30-60%, and place it in an airtight container at room temperature The conventional ammonification chemical treatment is carried out under normal temperature, and the treatment time is preferably no less than 24 hours at room temperature. If the treatment temperature is increased, the ammonification treatment time can be shortened accordingly. The purpose of ammonification treatment is to facilitate the softening of fibers and improve straw The microstructure of the rod improves the treatment effect of ...

Embodiment 3

[0038] A method for preparing crop stalk feed by steam explosion, which consists of the following steps:

[0039] First, crush crop straw (such as rice, corn, wheat, bean straw, peanut straw, etc.) Reduce the lignification degree of crop straw;

[0040] Secondly, add urea equivalent to 0.2-5% of the weight of crop straw and Ca(OH) equivalent to 2-8% of the weight of crop straw to the above-mentioned pulverized crop straw 2 , adjust the moisture content of the straw to 30-60%, and put it into a sealed container for compound chemical treatment at room temperature after stirring evenly. The treatment time is preferably no less than 24 hours at room temperature. Shorten the time of composite chemical treatment; the purpose of composite chemical treatment is to facilitate the softening of fibers, improve the microstructure of straw, and improve the treatment effect of steam explosion;

[0041]Thirdly, put the chemically pretreated crop straw into the steam explosion device, injec...

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Abstract

The invention relates to a gas eruption-based method for preparing a feed with high nutritive value by crop straws, which is characterized by comprising steps of pulverizing crop straws firstly, carrying out chemical pretreatment on the pulverized crop straws later, then placing the crop straws after the chemical pretreatment in a steam explosion device and filling saturated vapor and popping outthe straws after keeping the pressure for a certain period of time so as to achieve the purposes of damaging the lignocellulose structure, enhancing the nutritive value of the crop straw feed and realizing safety and no toxic or side-effect. The invention has simple technology, low energy consumption, stronger applicability and easy industrialization.

Description

technical field [0001] The present invention relates to a method for producing animal feed, in particular to a method for producing feed with high nutritional value by using crop straw, in particular to a method based on a steam explosion method that can change the structure of lignocellulose in the straw so that it can The invention discloses a method for preparing feed with high nutritional value by utilizing crop straws which greatly improves the digestibility in the rumen of animals. Background technique [0002] As we all know, due to factors such as grassland degradation and desertification, there is a shortage of high-quality feed, and with the rapid development of animal husbandry, the demand for feed is increasing. Crop stalks can be widely used as feed, but crop stalks have disadvantages such as poor palatability, low feed intake rate of livestock, low digestibility and nutritional value, and harmful substances, so they should be treated accordingly when used as fe...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A23K1/14
Inventor高翔陈坤杰
OwnerNANJING AGRICULTURAL UNIVERSITY