Method for biologically improving oilseed residue

Abstract

The invention relates to a method for biologically improving oilseed residue, which adopts the oilseed residue as main material. The method has the following characteristics that: in the form of single bacterium or compound, a selected bacterial strain which can efficiently degrade anti-nutritional factors is produced into seed liquid, which is dissolved in water according to a total inoculation amount accounting for 0.01 percent to 5 percent of the weight of the oilseed residue, the weight ratio of the water to the oilseed residue is 2:3 to 3:2, fermentation adjunct is added, the weight of the fermentation adjunct is 0.01 percent to 10 percent of the weight of the oilseed residue, nutritive additive is added, the weight of the nutritive additive is 0 percent to 10 percent of the weight of the oilseed residue, the oilseed residue is then added, the uniformly mixed base material is transferred into a fermenting tank, and is kept still to ferment under the temperature of 5 DEG C to 45 DEG C for 24 to 96 hours, and after fermentation, the base material is dried and dehydrated. The fermentation adjunct used in the process of fermentation can promote the degradation of the anti-nutritional factors and reduce the inoculation quantity of the bacterial strain, the production cost is reduced, the technique is simple and convenient, and thereby the equipment investment is reduced, which is favorable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of feed processing and microbial fermentation, and specifically relates to a method for preparing protein feed by using microbial solid-state fermentation and the like to reduce antinutrient substances in oil cake, which is used to improve the utilization rate of oil cake as feed. Background technique [0002] my country is the largest producer of feed in the world, and the total output of various feeds has exceeded 100 million tons. With the rapid development of the breeding industry and the feed industry, my country's feed protein resources are seriously insufficient, and a large amount of feed protein raw materials such as soybean meal, fish meal, and plasma protein must be imported from abroad every year. On the other hand, a large amount of oilseed cakes except soybean meal cannot be used rationally. Therefore, improving the utilization rate of oilseed cake has become an effective way to solve the shor...

AI Technical Summary

Problems solved by technology

The current methods include pit burial method, neutralization fermentation method, steam heating method, soaking method, microwave treatment method, chemical additive method, etc., but these methods have disadvantages such as high loss of nutrients and dry matter, complicated process, etc.

[0005] The patent application number is 200910061251.X. The invention patent combines physical pretreatment (high temperature and high pressure heat treatment, puffing treatment and irradiation treatment) and biological fermentation technology to biologically improve the feeding quality of oil cake, and the degradation effect of various anti-nutritional factors Good, but the treatment process of this method is more complicated, the amount of strain inoculation is higher, and the requirements for the fermentation environment are stricter

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