High-protein straw feed and preparation method thereof

Abstract

The invention discloses a high-protein straw feed, which comprises crop straw powder, actinomycetes, nocardia, lactobacillus acidophilusis and bacillus subtilis, the weight ratio of the strains is 0.8-1.2:1.6-2.4:0.8-1.2:1.8-1.2, and the weight ratio of the total strain amount to the crop straw powder is 1:1,000-1,200. The preparation method comprises the following steps of: respectively screening, separating, purifying, rejuvenating and culturing various strains, transplanting the strains into an industrial fermentation tank for fermentation, mixing in a ratio, and adsorbing by using an adsorptive support; and inoculating the obtained composite viable bacteria powder into crop straw powder or a mixture of the crop straw powder, staking and fermenting at the temperature of between 60 and 70 DEG C, uniformly turning once every two days, and obtaining the high-protein straw feed after 30 to 35 days. The high-protein straw feed has the advantages of improving protein content, optimizing protein structure, improving the absorption and nutrient conversion rate of the straw feed, and improving the immunity of livestock.

Description

technical field [0001] The invention discloses a high-protein straw feed, which belongs to the field of microbial fermentation. Background technique [0002] Due to the vigorous development of the aquaculture industry, the competition between humans and animals for food is becoming more and more serious. The development of new non-grain protein has become a hot spot today. The application of microbial fermentation technology and the use of agricultural waste straw as raw materials to make high-protein biological straw feed can effectively replace a large number of Raw grain, turning waste into treasure, thereby reducing the cost of farming. [0003] Generally, the fermented straw feed has low crude protein content and high crude fiber content, so a large amount of exogenous protein must be added, resulting in high cost and low raw grain replacement rate. [0004] The patent number is 200510084343. The applicant is Sun Yilong. The patent document named a new straw feed prepa...

AI Technical Summary

Problems solved by technology

[0003] Generally, the crude protein content of fermented straw feed is low, but the crude fiber content is too high, so a large amount of exogenous protein must be added, resulting in high cost and low raw grain replacement rate.

[0004] The patent number is 200510084343, the applicant is Sun Yilong, and the patent document named a new straw feed preparation method discloses that the crushed straw is mixed with animal manure and then fermented with anaerobic bacteria, and the fermented material is dehydrated and dried before being mixed with corn. Flour, wheat bran, and feed mixed additives are fully stirred and then sent to a straw extruder for puffing treatment. : 10-30: 10-30: 10-20. This process requires more components and high cost

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