Low-temperature degradation straw composite microbial agent containing Saccharomyces cerevisiae and application thereof

Abstract

The invention provides a low-temperature degradation straw composite microbial agent containing Saccharomyces cerevisiae. The composite bacterial agent uses 6 strains, so that the corn stalk maturitydays can be increased by 2 to 3 days in an environment with the outdoor temperature of 1 to 6 DEG C, and then the composite bacterial agent is particularly suitable for northern regions. Compared withthe control group, the average milk yield of cows fed with corn straw treated with compound bacteria is increased by 8.9kg, the content of crude fibers in cow manure is decreased by 3.4%, and the average daily intake is increased by 2.3kg, because the compound bacteria for degrading lignocelluloses is added, and a large amount of Saccharomyces cerevisiae is contained in the compound bacteria, thecorn straw has soft texture and acid aroma, and the palatability is obviously improved to increase the appetite of livestock. Furthermore, the Saccharomyces cerevisiae can promote animal growth, regulate normal gastrointestinal flora and maintain microecological balance, thereby having the effects of improving gastrointestinal functions, increasing food digestibility and biological values, reducing serum cholesterol, controlling endotoxin, inhibiting the growth of spoilage bacteria in intestinal tracts and improving the immunity of bodies and the like so as to further increase the daily output.

Description

technical field [0001] The invention relates to the field of microorganisms, in particular to a low-temperature straw-degrading straw composite bacterial agent containing lactic acid bacteria and its application. Background technique [0002] With the improvement of crop yields, the total amount of straw has increased rapidly. In order to catch up with the farming season, rush to sow seeds, and save trouble, the majority of farmers have begun to focus on the phenomenon of straw burning in most areas. A headache. In the past, due to the lack of development and utilization technology, market information blockage, and the short time for farmers to sow in autumn, most of the straw was discarded in the river, rotted by the roadside, or directly burned in the field, which not only blocked the river and road traffic. Moreover, it seriously pollutes the environment and causes a huge waste of resources. [0003] In recent years, with the continuous deepening of lignocellulose biodeg...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of crop yields, the total amount of straw has increased rapidly. In order to catch up with the farming season, rush to sow seeds, and save trouble, the majority of farmers have begun to focus on the phenomenon of straw burning in most areas. A headache. In the past, due to the lack of development and utilization technology, market information blockage, and the short time for farmers to sow in autumn, most of the straw was discarded in the river, rotted by the roadside, or directly burned in the field, which not only blocked the river and road traffic. Moreover, it seriously pollutes the environment and causes a huge waste of resources.

However, most of the complex bacterial strains reported so far show lignocellulose degrading ability under high temperature conditions or require chemical pretreatment of degraded raw materials, which to a certain extent

[0004] High operating requirements and high energy consumption

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