A method for wrapping silage with corn cobs and corncobs

A corncob and corncob technology, applied in the field of wrapped silage, can solve the problems of lack of secreted cellulase, poor palatability, long fermentation period and the like

Active Publication Date: 2021-07-23
INST OF ANIMAL HUSBANDRY & VETERINARY MEDICINE ANHUI ACAD OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Corn cobs contain 32%-36% cellulose, 35%-40% hemicellulose and 17%-20% lignin. Macromolecular polysaccharides such as cellulose, hemicellulose and lignin can only be decomposed and absorbed by herbivores, while The gut wall of non-herbivorous animals lacks cellulase-secreting flora and therefore cannot be absorbed
In the prior art, microorganisms are used to ferment corn cobs and corn cobs, and the biological enzymes produced in the fermentation process are used to degrade cellulose, hemicellulose and lignin in the straw. However, the polysaccharides in the corn cobs and corn cobs cannot be completely degraded. Provide sufficient carbon source for animal growth, in addition, the fermentation cycle is longer, the freshness of silage is reduced, and the taste becomes worse
[0003] The patent application number is CN201210167286.3, which discloses vegetable soybean pod shell silage and its preparation method. In this patent, dry corncobs, soybean pods, and lactic acid bacteria are directly mixed and fermented in the silage cellar for 60-90 days to obtain silage. Although the pod shells can be used as resources, lactic acid bacteria cannot use the cellulose and lignin of dry corncobs and edamame pods. Therefore, it is difficult to ferment silage that can be absorbed and utilized by non-herbivorous animals
The patent with the application number CN201610476484.6 discloses a method for preparing silage by mixing cauliflower stems and leaves with corn cobs. The patent mixes cauliflower stems and leaves, corn cob powder, lactic acid bacteria and silage enzymes, and anaerobically ferments 45-60 days to produce silage. Obtain silage, silage enzymes can decompose corn cob powder cellulose and lignin, and then provide carbohydrates for the growth and metabolism of lactic acid bacteria, but the fermentation cycle of this silage is long and the palatability is poor

Method used

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  • A method for wrapping silage with corn cobs and corncobs
  • A method for wrapping silage with corn cobs and corncobs
  • A method for wrapping silage with corn cobs and corncobs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: crushing corn cobs and corn cobs, passing through a 100-mesh sieve, and then adding 15% soybean powder to obtain a mixed raw material;

[0028] Step 2: Add water into the mixed raw materials according to the material-water ratio of 1:1, and mix evenly with 7% compound enzyme with an enzyme activity of 5000-6000U / g, preheat at 30°C for 0.5h, and then heat up to 40°C ℃ water bath for 3 hours to obtain the hydrolyzed puree;

[0029] Wherein, the composite enzyme includes the following components in parts by weight:

[0030]

[0031]

[0032] Step 3: Mix 0.6% sodium sorbate and 10% EM bacteria into the hydrolyzed puree, and stir for 30 minutes every 6 hours at 35°C under the condition of oxygenation, and after 3 days of fermentation, dehydrate and dry until the dry matter content is 45% , to obtain the first fermented product;

[0033] Step 4: Inoculate Ruminococcus xanthophyllum, Ruminococcus albicans, Filamentous bacteria succinogenes, Lactobacillus casei,...

Embodiment 2

[0035] The operation is the same as in Example 1, wherein, step 1, mesh number: 125, soybean powder: 20%, soybean powder; step 2, material-to-water ratio: 1.5:1, compound enzyme: 8%, 6000-7000U / g, preheat : 33°C, 0.75h, water bath: 45°C, 4h, parts by weight of the components of the compound enzyme: 13 parts, 40 parts, 39 parts, 25 parts, 20 parts, 30 parts, 10 parts; Step 3, antifungal agent: 0.8%, sodium benzoate, EM bacteria: 13%, fermentation: 36°C, 4d, intermittent stirring: every 9h, stirring for 40min; Step 4, the mass ratio of the components of the anaerobic fermentation agent is 2.3:2.1:1.6:2.5: 3. Anaerobic starter dosage: 6%, fermentation: 40°C, 13 days, number of wrapping layers: 5, stack height: 25cm.

Embodiment 3

[0037] The operation is the same as in Example 1, wherein, step 1, mesh number: 150, bean flour: 25%, pea flour; step 2, material-to-water ratio: 2:1, compound enzyme: 9%, 7000-8000U / g, preheat : 35°C, 1h, water bath: 50°C, 5h, parts by weight of each component of the compound enzyme: 15 parts, 50 parts, 48 ​​parts, 30 parts, 24 parts, 35 parts, 12 parts; Step 3, antifungal agent: 1 %, dimethyl fumarate, EM bacteria: 15%, fermentation: 37°C, 5d, intermittent stirring: every 12h, stirring for 50min; step 4, the mass ratio of the components of the anaerobic fermentation agent is 2.5:2.3:1.5 : 3: 2.5, dosage of anaerobic fermentation agent: 7%, fermentation: 42°C, 15 days, number of wrapping layers: 6, stack height: 30cm.

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Abstract

The invention discloses a method for wrapping corn cobs and corn cobs into silage, which comprises the following steps: step 1: crushing corn cobs and corn cobs, and mixing them with 15-25% soybean flour; step 2: adding 7‑9% compound enzyme for hydrolysis; step 3: mix antifungal agent and EM bacteria into the hydrolyzed raw pulp, after aerobic fermentation for 5‑7d, dehydrate to dry matter content of 45‑55%; step 4: add 5‑7% anaerobic fermentation agent, under 28‑33 ° C nitrogen atmosphere, compact the film, anaerobic fermentation for 10‑15 days. Wherein, the composite enzyme includes the following components: protease, cellulase, hemicellulase, glucoamylase, laccase, lignin peroxidase, and rhodococcus extracellular enzyme. The invention can efficiently degrade cellulose, hemicellulose and lignin, obviously strengthen the microbial fermentation, shorten the fermentation cycle, and the produced feed is rich in nutrition, good in palatability, and easy for animals to digest and absorb.

Description

technical field [0001] The invention belongs to the technical field of wrapping silage, and in particular relates to a method for wrapping corn cobs and corncobs into silage. Background technique [0002] Corn cobs contain 32%-36% cellulose, 35%-40% hemicellulose and 17%-20% lignin. Macromolecular polysaccharides such as cellulose, hemicellulose and lignin can only be decomposed and absorbed by herbivores, while The gut wall of non-herbivorous animals lacks cellulase-secreting flora and, therefore, cannot be absorbed and utilized. In the prior art, microorganisms are used to ferment corn cobs and corn cobs, and the biological enzymes produced in the fermentation process are used to degrade cellulose, hemicellulose and lignin in the straw. However, the polysaccharides in the corn cobs and corn cobs cannot be completely degraded. Provide sufficient carbon source for animal growth. In addition, the fermentation cycle is longer, the freshness of silage is reduced, and the taste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K10/12A23K10/14A23K10/30A23K10/37
CPCA23K10/12A23K10/14A23K10/30A23K10/37Y02P60/87
Inventor 李争艳徐智明邓源张宇龙冯博政李岩李杨朱德建韩伟
Owner INST OF ANIMAL HUSBANDRY & VETERINARY MEDICINE ANHUI ACAD OF AGRI SCI
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