CN105379947A - Animal feed and preparation method thereof - Google Patents
Animal feed and preparation method thereof Download PDFInfo
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- CN105379947A CN105379947A CN201510937401.4A CN201510937401A CN105379947A CN 105379947 A CN105379947 A CN 105379947A CN 201510937401 A CN201510937401 A CN 201510937401A CN 105379947 A CN105379947 A CN 105379947A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Abstract
The invention discloses a preparation method of animal feed and the animal feed. The preparation method utilizes combination of chemical composite treatment and biological treatment. The preparation method has the advantages that 1, through combination of chemical composite treatment and biological treatment, middle and crude fibers, neutral detergent fibers and acid detergent fibers of corn straws are effectively degraded, feed crude protein content is improved and feed nutrition value is improved, 2, the used biological fermentation bacteria improve feed palatability at a certain degree, is conducive to improvement of animal feed intake and digestibility and improves animal immunity and disease resistance, and 3, a corn straw resource is fully utilized and the feed preparation method has simple processes, high safety, no toxicity and damage and a low investment cost and solves the problem of winner feed shortage in the north region.
Description
Technical field
The present invention relates to feed preparation field, be specifically related to a kind of preparation method of animal feed and the animal feed of preparation thereof.
Background technology
Corn is one of staple food crop, can produce a large amount of maize straws, and current process adopts the mode of burning substantially after harvest corn, and this mode is not only to environment, and the utilization rate of maize straw is also very low.Current China is mainly ensiling for maize straw as the processing mode of feed, although this mode is simple, the raising effect for the nutritive value of stalk is little, can not make full use of the nutritional labeling in maize straw.So how fully efficiency utilization maize straw resource becomes our current problem demanding prompt solution.In the past in most of the time of 10 years, world food consumption figure is always higher than output.It is predicted that the year two thousand thirty grain demand will improve 30% ~ 40%; the arrival of whole world new round crisis in food seems cannot avoid; feed grain will be shorter, so utilize science and technology to solve stalk resource as the weak point of feed, can make tremendous contribution for aquaculture.
In recent years along with the increase of domestic ruminant cultivation amount, especially the developing rapidly of milk cattle cultivating, alfalfa hay has become the rigid demand of herbivorous animal, in view of domestic alfalfa output and quality lower, clover supply gap is larger, alfalfa products external dependence degree progressively improves, and causes Alfalfa import volume to be in recent years multiplied.Because domestic ALFALFA PRODUCTION level is still lower, the five-year quality alfalfa import volume will be maintained at higher level.China's stalk annual production reaches more than 700,000,000 ton, but feed conversion amount only 300,000,000 tons, account for 45% of total output, domestic stalk resource is rice straw, cornstalk and straw mainly, be respectively 2.1 hundred million tons, 2.09 hundred million tons and 1.1 hundred million tons, most without fodder technical finesse, therefore at present the energy that provides for animal husbandry of stalk and nutrition very limited.2005 ~ 2009 years, domestic milk cattle cultivating intensive degree was higher, and beef cattle and mutton sheep are main mainly with the small-scaleization cultivation such as raising scattered, and therefore milk cow industry feed output is comparatively large, accounts for and ruminates 90% of industry feed total output.Since 2010, along with country progressively helps beef cattle and mutton sheep cultivation, and the adjustment of Dietary Pattern of Residents has driven the demand of beef and mutton, and beef cattle and Mutton Sheep Industry large-scale degree improve constantly.Therefore, following milk cow industry feed demand growth space is more stable, beef cattle and mutton sheep industry feed demand growth space then very large.
Summary of the invention
Object of the present invention is exactly for above-mentioned defect of the prior art, provides a kind of preparation method of animal feed and the animal feed of preparation thereof.
To achieve these goals, technical scheme provided by the invention is: a kind of preparation method of animal feed, is chemically composited process to be combined with biological treatment to carry out the preparation of animal feed.
Further, the preparation method of above-mentioned a kind of animal feed, comprises the following steps:
1) carry out chemically composited process by after corn straw smashing, after drying, obtain chemically composited process corn stalk powder;
2) preparing microorganism mixed culture fermentation bacterium liquid, and by mixed bacteria liquid and step 1) the chemically composited process corn stalk powder that obtains mixes, add biological complex enzyme enzyme liquid again, glucose, potassium dihydrogen phosphate, magnesium sulfate, ferrous sulfate, B B-complex and trace element are added rear abundant mixing simultaneously, mixing liquid is transferred in fermentation vat and ferments;
3) after fermenting about 20 ~ 30 days, the fermentation materials obtained and wheat bran, dregs of beans, corn flour, feeding amino acid are fully mixed, drying is also granulated, and obtains Animal feed pellets.
Further, the preparation method of above-mentioned a kind of animal feed, in described step 1) in, corn straw smashing order number is about 20 orders; Chemically composited processing procedure is divided into ammonification, alkalization and salinization three steps, ammonification, alkalization and salinization three steps are carried out simultaneously, by the corn stalk powder after pulverizing and to account for the urea that corn stalk powder gross mass percentages is about 2 ~ 5%, the calcium hydroxide of about 3 ~ 5%, the sodium chloride of about 0.3 ~ 0.5% is mixed together evenly, under reaction temperature about 25 ~ 30 DEG C of conditions, react about 20 ~ 30 days, obtain chemically composited process corn stalk powder.
Further, the preparation method of above-mentioned a kind of animal feed, in described step 2) in, biological mixed culture fermentation bacterium liquid comprises one or more in yeast for animal feeds bacterium bacterium liquid, bacillus bacterium liquid, Lactobacillus plantarum bacterium liquid and lactic acid bacterial liquid; Described biology enzyme enzyme liquid is selected from one or more liquid enzymes in cellulase, hemicellulase, zytase, pectase and phytase.
Further, the preparation method of above-mentioned a kind of animal feed, in described step 2) in, be about 0.02 ~ 0.04% by with corn stalk powder mass percent mixed bacteria liquid inoculum concentration; According to the mixing gross mass meter of mixed bacteria liquid and chemically composited process corn stalk powder, the addition of biology enzyme enzyme liquid is about 0.5 ~ 0.7%.
Further, the preparation method of above-mentioned a kind of animal feed, in described step 2) in, according to the mixing gross mass meter of mixed bacteria liquid and chemically composited process corn stalk powder, the addition of glucose is about 1 ~ 2%, potassium dihydrogen phosphate addition is about 2 ~ 3%, magnesium sulfate addition is about 0.003 ~ 0.005%, ferrous sulfate addition is about 0.2 ~ 0.3%, the addition of B B-complex is about 0.01 ~ 0.02%, and micro-addition is about 0.05 ~ 0.07%.
Further, the preparation method of above-mentioned a kind of animal feed, in described step 2) in, fermentation adopts anaerobic fermentation mode, and control fermentation materials water content and be about 50 ~ 60%, fermentation time is about 20 ~ 30 days.
Further, the preparation method of above-mentioned a kind of animal feed, in described step 3) in, according to the gross mass meter of fermentation materials, the addition of wheat bran is about 0.1 ~ 0.2%, the addition of dregs of beans is about 0.1 ~ 0.3%, and the addition of corn flour is about 0.2 ~ 0.4%, and feeding amino acid whose addition is about 0.5 ~ 0.6%; Described wheat bran and dregs of beans are first crushed to about 20 orders to add again; The Animal feed pellets water content that described granulation obtains about is less than 16%.
Second object of the present invention there is provided the animal feed prepared with the preparation method of above-mentioned a kind of animal feed.
A kind of preparation method of animal feed provided by the invention and the animal feed of preparation thereof, crude protein content in prior art is not only solved low by the combination of chemically composited process and biologic treating technique, the problem that crude fibre, neutral detergent fiber and acid detergent fiber content are high, microbial fermentation technology can also improve the digestibility of animal and the resistance against diseases of animal.The standard of national food feed can not only be reached through the quality of the corn straw feedstuff of above technical finesse, and take full advantage of domestic abundant maize straw resource, and production technology is simple, easy operation, cost of investment is lower, the feed that this explained hereafter goes out is not only nutritious, and for the very large facilitation of growing of animal.
Beneficial effect of the present invention is:
1, the present invention adopts chemically composited process can the effective content of crude fibre, neutral detergent fiber and acid detergent fiber in degrading maize straws with the technology that combines of carrying out a biological disposal upon, and improves crude protein content in feed, increase feed nutritive value;
2, biofermentation microbial inoculum of the present invention, not only improves the palatability of feed to a certain extent, but also contributes to the searching for food property and the digestibility that improve animal, and improves immunity and the resistance against diseases of animal;
3, the present invention takes full advantage of maize straw resource, and feed production technology is relatively simple, and security is high, nonhazardous, and cost of investment is lower, solves the problem of northern area feed grain in winter shortage.
Accompanying drawing explanation
Fig. 1 is the production technological process of the embodiment of the present invention.
Detailed description of the invention
The present invention's material used can be such as following material:
Yeast for animal feeds bacterium: purchased from the Shandong biological Co., Ltd of holy fine jade, commodity HS is encoded to 2102100.00.
Lactic acid bacteria: purchased from the Shandong biological Co., Ltd of holy fine jade, commodity HS is encoded to 23099010.00.
Lactobacillus plantarum: purchased from Fu Xiang bio tech ltd, Shanghai, commodity HS is encoded to 23099010.00.
Bacillus: purchased from Fu Xiang bio tech ltd, Shanghai, commodity HS is encoded to 30029030.00.
Zytase: purchased from Shandong Continent Biological Technology Co., Ltd, commodity HS is encoded to 23099010.00.
Cellulase: purchased from Shandong Continent Biological Technology Co., Ltd, commodity HS is encoded to 35079090.00.
Hemicellulase: purchased from Shandong Continent Biological Technology Co., Ltd, commodity HS is encoded to 35079090.00.
Pectase: purchased from Shandong Continent Biological Technology Co., Ltd, commodity HS is encoded to 35079090.00.
Phytase: purchased from Shandong Continent Biological Technology Co., Ltd, commodity HS is encoded to 35079090.00
B B-complex: purchased from Henan Xing Yuan chemical products Co., Ltd, commodity HS is encoded to 21069090.90.
Wheat bran: purchased from the smooth and prosperous feed corporation,Ltd in Shijiazhuang, commodity HS is encoded to 23023000.00.
Dregs of beans: purchased from the smooth and prosperous feed corporation,Ltd in Shijiazhuang, commodity HS is encoded to 23025000.00.
Corn flour: purchased from the smooth and prosperous feed corporation,Ltd in Shijiazhuang, commodity HS is encoded to 11022000.00.
Feeding amino acid: purchased from Henan and herd animal pharmaceutical Co. Ltd, commodity HS is encoded to 23099010.00.
It will be appreciated by persons skilled in the art that above-mentioned material only illustrates by way of example, material used in the present invention is not limited to the material buied from above-mentioned company, but can for having the corresponding material of same or similar effect.
Below in conjunction with accompanying drawing, three embodiments of the present invention are described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.As shown in Figure 1, the present invention includes following steps: block diagram 101 is raw material, block diagram 102 is for pulverizing, and block diagram 103 is chemically composited process, and block diagram 104 is mixed once, block diagram 105 is inoculation, block diagram 106 is secondary mixing, and block diagram 107 is fermentation, and block diagram 108 is three mixing, block diagram 109 is for granulating, and block diagram 110 is finished product.
Refer to Fig. 1, the embodiment of the present invention comprises:
Embodiment 1:
A preparation method for animal feed, be chemically composited process 103 processed to combine with biofermentation 107 to carry out the preparation of animal feed, its specific operation process, comprises the following steps:
1) chemically composited process 103 is carried out after adopting high-speed rotary pulverizer that corn stalk raw material 101 is pulverized 102 to 20 orders, by the corn stalk powder after pulverizing 102 and the urea counting 2.5% with corn stalk powder mass percent, the calcium hydroxide of 3%, the sodium chloride of 0.3% is mixed together 104 even, react 20 days under reaction temperature 25 ~ 30 DEG C of conditions, obtain chemically composited process 103 corn stalk powder;
2) preparing microorganism mixed bacteria liquid and biology enzyme mixed liquor, by inoculating the amount of 105 mixed bacteria liquids with corn stalk powder mass percent for 0.02%; According to the mixing gross mass meter of mixed bacteria liquid and chemically composited process 103 corn stalk powder, the addition of biology enzyme enzyme liquid is 0.5%; Glucose, potassium dihydrogen phosphate, magnesium sulfate, ferrous sulfate, B B-complex and trace element are added rear abundant mixing simultaneously, according to the mixing gross mass meter of mixed bacteria liquid and chemically composited process 103 corn stalk powder, the addition of glucose is 1%, potassium dihydrogen phosphate addition is 2%, magnesium sulfate addition is 0.003%, ferrous sulfate addition is 0.2%, the addition of B B-complex is 0.01%, and micro-addition is 0.05%; Be transferred in fermentation vat by mixed 106 uniform solution and carry out fermentation 107, fermentation 107 adopts anaerobic fermentation mode, and controlling fermentation materials water content is 50 ~ 60%, and fermentation time is 20 days;
3) ferment 107 after 20 days, according to the gross mass meter of fermentation materials, the addition of wheat bran is 0.1%, and the addition of dregs of beans is 0.1%, and the addition of corn flour is 0.2%, and feeding amino acid whose addition is 0.5%, and fully mixing 108 is even again; Described wheat bran and dregs of beans first pulverize 102 to 20 orders to add again; 109 Animal feed pellets finished product 110 crude protein contents obtained of granulating are 17.8%, and moisture is 13.1%, and crude fiber content is 30.92%, neutral detergent fiber content is 54.14%, acid detergent fiber content is 30.51%.
Embodiment 2:
A preparation method for animal feed, be chemically composited process 103 processed to combine with biofermentation 107 to carry out the preparation of animal feed, its specific operation process, comprises the following steps:
1) chemically composited process 103 is carried out after adopting high-speed rotary pulverizer that corn stalk raw material 101 is pulverized 102 to 20 orders, by the corn stalk powder after pulverizing 102 and the urea counting 3.5% with corn stalk powder mass percent, the calcium hydroxide of 4%, the sodium chloride of 0.4% is mixed together 104 even, react 25 days under reaction temperature 25 ~ 30 DEG C of conditions, obtain chemically composited process 103 corn stalk powder;
2) preparing microorganism mixed bacteria liquid and biology enzyme mixed liquor, by inoculating the amount of 105 mixed bacteria liquids with maize straw mass percent for 0.03%; According to the mixing gross mass meter of mixed bacteria liquid and chemically composited process 103 corn stalk powder, the addition of biology enzyme enzyme liquid is 0.6%; Glucose, potassium dihydrogen phosphate, magnesium sulfate, ferrous sulfate, B B-complex and trace element are added rear abundant mixing simultaneously, according to the mixing gross mass meter of mixed bacteria liquid and chemically composited process 103 corn stalk powder, the addition of glucose is 1.5%, potassium dihydrogen phosphate addition is 2.5%, magnesium sulfate addition is 0.004%, ferrous sulfate addition is 0.25%, the addition of B B-complex is 0.015%, and micro-addition is 0.06%; Be transferred in fermentation vat by mixed 106 uniform solution and carry out fermentation 107, fermentation 107 adopts anaerobic fermentation mode, and controlling fermentation materials water content is 50 ~ 60%, and fermentation time is 25 days;
3) ferment 107 after 25 days, according to the gross mass meter of fermentation materials, the addition of wheat bran is 0.15%, and the addition of dregs of beans is 0.2%, and the addition of corn flour is 0.3%, and feeding amino acid whose addition is 0.55%, and fully mixing 108 is even again; Described wheat bran and dregs of beans first pulverize 102 to 20 orders to add again; 109 Animal feed pellets finished product 110 crude protein contents obtained of granulating are 18.7%, and moisture is 12.8%, and crude fiber content is 28.96%, neutral detergent fiber content is 52.77%, acid detergent fiber content is 29.36%.
Embodiment 3:
A preparation method for animal feed, be chemically composited process 103 processed to combine with biofermentation 107 to carry out the preparation of animal feed, its specific operation process, comprises the following steps:
1) chemically composited process 103 is carried out after adopting high-speed rotary pulverizer that corn stalk raw material 101 is pulverized 102 to 20 orders, by the corn stalk powder after pulverizing 102 and the urea counting 4% with corn stalk powder mass percent, the calcium hydroxide of 5%, the sodium chloride of 0.5% is mixed together 104 even, react 30 days under reaction temperature 25 ~ 30 DEG C of conditions, obtain chemically composited process 103 corn stalk powder;
2) preparing microorganism mixed bacteria liquid and biology enzyme mixed liquor, by inoculating the amount of 105 Mixed Microbes bacterium liquid with maize straw mass percent for 0.04%; According to the mixing gross mass meter of mixed bacteria liquid and chemically composited process 103 corn stalk powder, the addition of biology enzyme enzyme liquid is 0.7%; Glucose, potassium dihydrogen phosphate, magnesium sulfate, ferrous sulfate, B B-complex and trace element are added rear abundant mixing simultaneously, according to the mixing gross mass meter of mixed bacteria liquid and chemically composited process 103 corn stalk powder, the addition of glucose is 2%, potassium dihydrogen phosphate addition is 3%, magnesium sulfate addition is 0.005%, ferrous sulfate addition is 0.3%, the addition of B B-complex is 0.02%, and micro-addition is 0.07%; Be transferred in fermentation vat by mixed 106 even liquid and carry out fermentation 107, fermentation 107 adopts anaerobic fermentation mode, and controlling fermentation materials water content is 50 ~ 60%, and fermentation time is 30 days;
3) ferment 107 after 30 days, according to the gross mass meter of fermentation materials, the addition of wheat bran is 0.2%, and the addition of dregs of beans is 0.3%, and the addition of corn flour is 0.4%, and feeding amino acid whose addition is 0.6%, and fully mixing 108 is even again; Described wheat bran and dregs of beans first pulverize 102 to 20 orders to add again; 109 Animal feed pellets finished product 110 crude protein contents obtained of granulating are 22.5%, and moisture is 12.2%, and crude fiber content is 27.38%, neutral detergent fiber content is 50.56%, acid detergent fiber content is 28.47%.
By reference to the accompanying drawings the preferred embodiments of the disclosure and embodiment are explained in detail above, but the present invention is not limited to the above-described embodiment and examples, in the ken that those skilled in the art possess, various change can also be made without departing from the inventive concept of the premise.
Claims (9)
1. a preparation method for animal feed, is characterized in that, is chemically composited process to be combined with biological treatment to carry out the preparation of animal feed.
2. the preparation method of a kind of animal feed according to claim 1, is characterized in that, comprise the following steps:
1) carry out chemically composited process by after corn straw smashing, after drying, obtain chemically composited process corn stalk powder;
2) preparing microorganism mixed culture fermentation bacterium liquid, and by mixed bacteria liquid and step 1) the chemically composited process corn stalk powder that obtains mixes, add biological complex enzyme enzyme liquid again, glucose, potassium dihydrogen phosphate, magnesium sulfate, ferrous sulfate, B B-complex and trace element are added rear abundant mixing simultaneously, mixing liquid is transferred in fermentation vat and ferments;
3) after fermenting about 20 ~ 30 days, the fermentation materials obtained and wheat bran, dregs of beans, corn flour, feeding amino acid are fully mixed, drying is also granulated, and obtains Animal feed pellets.
3. the preparation method of a kind of animal feed according to claim 2, is characterized in that, in described step 1) in, corn straw smashing order number is about 20 orders; Chemically composited processing procedure is divided into ammonification, alkalization and salinization three steps, wherein ammonification, alkalization and salinization three steps are carried out simultaneously, by the corn stalk powder after pulverizing and to account for the urea that corn stalk powder gross mass percentages is about 2 ~ 5%, the calcium hydroxide of about 3 ~ 5%, the sodium chloride of about 0.3 ~ 0.5% is mixed together evenly, under reaction temperature about 25 ~ 30 DEG C of conditions, react about 20 ~ 30 days, obtain chemically composited process corn stalk powder.
4. the preparation method of a kind of animal feed according to claim 2, it is characterized in that, in described step 2) in, biological mixed culture fermentation bacterium liquid comprises one or more in yeast for animal feeds bacterium bacterium liquid, bacillus bacterium liquid, Lactobacillus plantarum bacterium liquid and lactic acid bacterial liquid; Described biology enzyme enzyme liquid is selected from one or more liquid enzymes in cellulase, hemicellulase, zytase, pectase and phytase.
5. the preparation method of a kind of animal feed according to claim 2, is characterized in that, in described step 2) in, be about 0.02 ~ 0.04% by with maize straw mass percent mixed bacteria liquid inoculum concentration; According to the mixing gross mass meter of mixed bacteria liquid and chemically composited process corn stalk powder, the addition of biology enzyme enzyme liquid is about 0.5 ~ 0.7%.
6. the preparation method of a kind of animal feed according to claim 2, it is characterized in that, in described step 2) in, according to the mixing gross mass meter of mixed bacteria liquid and chemically composited process corn stalk powder, the addition of glucose is about 1 ~ 2%, potassium dihydrogen phosphate addition is about 2 ~ 3%, magnesium sulfate addition is about 0.003 ~ 0.005%, ferrous sulfate addition is about 0.2 ~ 0.3%, the addition of B B-complex is about 0.01 ~ 0.02%, and micro-addition is about 0.05 ~ 0.07%.
7. the preparation method of a kind of animal feed according to claim 2, is characterized in that, in described step 2) in, fermentation adopts anaerobic fermentation mode, and control fermentation materials water content and be about 50 ~ 60%, fermentation time is about 20 ~ 30 days.
8. the preparation method of a kind of animal feed according to claim 2, it is characterized in that, in described step 3) in, according to the gross mass meter of fermentation materials, the addition of wheat bran is about 0.1 ~ 0.2%, the addition of dregs of beans is about 0.1 ~ 0.3%, and the addition of corn flour is about 0.2 ~ 0.4%, and feeding amino acid whose addition is about 0.5 ~ 0.6%; Described wheat bran and dregs of beans are first crushed to about 20 orders to add again; The Animal feed pellets water content that described granulation obtains about is less than 16%.
9. the animal feed that obtains of the preparation method of the animal feed according to any one of claim 1 ~ 8.
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Cited By (7)
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| CN106036068A (en) * | 2016-07-21 | 2016-10-26 | 柳州顺科技有限公司 | High-cold-region cattle-sheep breeding feed |
| CN106173343A (en) * | 2016-07-21 | 2016-12-07 | 柳州顺科技有限公司 | A kind of preparation method of cattle and sheep breeding feed |
| CN106173344A (en) * | 2016-07-21 | 2016-12-07 | 柳州顺科技有限公司 | A kind of mixed breed feedstuff improving cattle and sheep immunity |
| CN107125436A (en) * | 2017-03-27 | 2017-09-05 | 防城港市动物疫病预防控制中心 | A kind of method that utilization stalk fermentation reduction crude fibre produces feed |
| CN107333972A (en) * | 2017-05-05 | 2017-11-10 | 宁夏大学 | A kind of mixed fodder |
| CN107668361A (en) * | 2017-11-16 | 2018-02-09 | 成都新柯力化工科技有限公司 | A kind of method for lifting biological feedstuff of stalk nutritive value |
| CN109156825A (en) * | 2018-07-10 | 2019-01-08 | 永州职业技术学院 | The extracting method and its application of active constituent in a kind of leaf of bamboo |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107333972A (en) * | 2017-05-05 | 2017-11-10 | 宁夏大学 | A kind of mixed fodder |
| CN107668361A (en) * | 2017-11-16 | 2018-02-09 | 成都新柯力化工科技有限公司 | A kind of method for lifting biological feedstuff of stalk nutritive value |
| CN109156825A (en) * | 2018-07-10 | 2019-01-08 | 永州职业技术学院 | The extracting method and its application of active constituent in a kind of leaf of bamboo |
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Application publication date: 20160309 |