Method for preparing corn straw coarse feed by microbial beneficial living bacteria

Abstract

The invention relates to a method for preparing corn straw coarse feed by microbial beneficial living bacteria. The method comprises the steps of (1) preparing microbial strains: respectively feeding two strains of bacillus subtilis, one strain of lactobacillus acidophilus, one strain of lactobacillus bulgaricus and one strain of rhodopseudomonas palustris onto corresponding culture mediums, culturing, carrying out expanding propagation, and mixing 20g of bacillus subtilis, 20g of lactobacillus acidophilus, 20g of lactobacillus bulgaricus and 20g of rhodopseudomonas palustris for later use; preparing 100g of cellulase; (2) preparing corn straw: flattening the corn straw, and drawing into hair shape with a wire drawing machine for later use; (3) preparing the corn straw coarse feed: putting 1000g of prepared corn straw into a fermentation container, and evenly spraying 5g of cellulase onto the corn straw; diluting microorganism with well water, then spraying onto the corn straw, and fermenting in an airtight way for 7-10 days; taking out the product, drying and packaging to obtain the corn straw coarse feed. The method is simple in technology and short in fermentation period, and is capable of saving a great deal of grain; the prepared biological straw feed is good in palatability, high in lactic acid content and more in beneficial bacteria.

Description

technical field [0001] The invention belongs to the technical field of livestock and poultry feed, and in particular relates to a method for preparing corn stalk roughage by using beneficial live microorganisms. Background technique [0002] my country is a large agricultural country, and crop straw is an important biological resource because of its large output, wide distribution and variety. According to statistics, in 2010, the total output of straw in my country was about 700 million tons. However, these straw resources have not been rationally developed and utilized for a long time. With the transformation of agricultural production methods and the improvement of rural living conditions, the phenomenon of random discarding and burning of straw is serious, which not only wastes resources but also pollutes the environment. Therefore, accelerating the comprehensive utilization of straw is conducive to alleviating resource constraints and reducing environmental pressure. ...

AI Technical Summary

Problems solved by technology

However, due to the lack of sufficient understanding of straw structure and efficient microbial breeding, the straw feed produced by this technology currently has the following main problems:

[0006] (1) Straw lacks pretreatment before fermentation or only adopts simple physical treatment such as forging or crushing, which cannot effectively break the straw structure, and the degradation rate of cellulose and hemicellulose is low

Patent CN3105080 uses multi-strain combined anaerobic fermentation to produce straw protein feed. The structure is forged into 3-5cm or crushed into 20 meshes. The crushing particle size is difficult to break the straw structure, and the nutritional content of the straw cannot be greatly improved.

[0007] (2) The number or types of microorganisms used in fermentation are too many, resulting in cumbersome production process, fermentation cycle factory, difficult product quality control and low production efficiency

Patent CN98110370 discloses a straw feed fermentation process, the process involves lactic acid bacteria, yeast, biomimetic flora (Aspergillus niger, Aspergillus oryzae, Trichoderma and Candida) and other fermenting microorganisms, fermented at 30-40° for 10-15 Days to obtain fermented feed, complex process

[0008] (3) The microorganisms used in fermentation do not have the ability to degrade cellulose and hemicellulose, and cannot effectively improve the metabolic capacity of straw, and the utilization rate of straw is low

Patent CN200810016743 Soak the straw crushed to 2-3cm in the yeast culture solution for 9 hours to ferment, but the yeast does not have the enzyme system to degrade cellulose and hemicellulose

[0009] (4) The safety of microorganisms used in fermentation is uncertain, and there may be harmful bacteria or molds

Trichoderma reesei involved in the feed starter disclosed in patent CN200510066003 and patent CN201010261969 does not belong to the feed additive catalog of the Ministry of Agriculture, and its safety cannot be determined

[0010] (5) The lactic acid content of the prepared straw feed is low, the number of viable probiotic bacteria is low, the palatability is poor, the feeding effect is not good, and the grain saving effect is not significant