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Microbial fermentation method for steam-exploded corn straw

A technology of microbial fermentation and corn stalks, applied in the preservation method of animal feed raw materials, animal feed, applications, etc., can solve problems such as mildew, potential safety hazards of animal products, and reduced nutritional value of straws, so as to improve quality and increase resistance Immunity to diseases, improvement of nutritional value and utilization

Active Publication Date: 2013-11-20
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the drying cost accounts for 8% to 10% of the market price of the product, and the dried steam-exploded straw tends to go moldy in high-temperature and high-humidity seasons, which not only reduces the nutritional value of the straw, but also leads to hidden dangers in the safety of livestock products.

Method used

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Effect test

Embodiment 1

[0016] The effect of microbial fermentation treatment on the nutritional value of steam-exploded corn stalks was divided into three treatment groups: ordinary corn stalks, steam-exploded corn stalks and microbial steam-exploded corn stalks. In the method of the present invention, the steam-exploded corn stalks are subjected to moisture modulation, the water content is 60%, corn flour of 5% by weight of the dry matter of the straws is added, and the compound microbial inoculant is inoculated; the steam-exploded corn stalks treated by the compound microbial inoculant are passed through a fully automatic high The density straw feed baler (model YC-5000, Baoding Jindi Land Ecological Engineering Co., Ltd.) is packed into double-layer packaging bags, compacted and sealed, stored in storage, and anaerobically fermented; the compound microbial inoculant includes Brinell milk Bacillus (Lactobacillus buchneri 1.3112, China General Microorganism Culture Collection Management Center), Lac...

Embodiment 2

[0025] Embodiment two: the microbial steam-exploded corn stalk prepared by the method of the present invention is mixed with 28% corn, 15.2% brewer's grains, 5% ryegrass, 7% alfalfa, 0.5% salt in a ratio of 43% on a dry matter basis , 0.6% stone powder, 0.2% calcium hydrogen phosphate, 0.2% magnesium oxide, and 0.3% sodium bicarbonate to form a complete mixed diet to feed beef cattle. Compared with the control diet (unfermented steam-exploded corn straw group), feeding microbial steam Beef cattle fed corn stover increased feed intake by 13.5% and daily gain by 15.6%.

Embodiment 3

[0026] Embodiment three: the microbial steam-exploded corn stalk prepared by the method of the present invention is mixed with 43% corn, 14.4% brewer's grains, 6% ryegrass, 5% alfalfa, 0.5% salt according to the ratio of 29% on a dry matter basis , 1.0% stone powder, 0.1% calcium hydrogen phosphate, 0.3% magnesium oxide, and 0.7% baking soda to form a complete mixed diet to feed beef cattle. Compared with the control diet (unfermented steam-exploded corn straw group), after feeding, the beef cattle Feed intake increased by 8.3% and daily gain increased by 12.4%.

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Abstract

The invention discloses a microbial fermentation method for steam-exploded corn straws and belongs to the technical field of forage processing. The method is as below: modulating moisture of corn straws subjected to steam explosion; adding a corn flour 5 wt% of the dry matter weight of the corn straws; inoculating a mixed microbe zymocyte; filling the steam-exploded corn straws treated by the mixed microbe zymocyte into a double-layer packaging bag by a high density forage compressor, compacting, sealing, storing in a ware house, and carrying out anaerobic fermentation. The method provided by the invention fully utilizes corn straws; fermentation effect of the mixed microbe zymocyte improves forage quality, so that complex macro-molecular substances contained in the corn straws and including protein, cellulose, pectin and various organic acids, which are difficult to decompose and utilize by the animals, can be degraded to micromolecular substances easy for digestion by animals and form a large amount of thalline protein; therefore, the nutrition value and utilization rate of the raw materials are greatly enhanced. The fermentation effect improves palatability of the steam-exploded corn straw forage and increases food consumption and daily gain of livestock.

Description

technical field [0001] The invention belongs to the technical field of feed processing, and in particular relates to a microbial fermentation method for steam-exploded corn stalks. Background technique [0002] my country is a large agricultural country with large output, wide distribution and variety of crop straw, which has been a valuable resource for farmers' life and agricultural development for a long time. According to survey statistics, the national straw theoretical resources are 840 million tons, and the collectable resources are about 700 million tons, of which corn straw is about 273 million tons, accounting for one-third of the total straw. With the continuous bumper harvests in agriculture, the production of corn stalks has increased year by year, and the phenomenon of random discarding and burning of straws is serious, which has brought a series of environmental problems. Accelerating the comprehensive utilization of straw is of great significance for stabili...

Claims

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Application Information

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IPC IPC(8): A23K3/02A23K3/03
Inventor 周振明孟庆翔任丽萍
Owner CHINA AGRI UNIV
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