Fermentation method for fermenting liquid fodder

Abstract

The invention discloses a fermentation method for fermenting liquid fodder. The method comprises the following steps that water is added into cereal raw materials, even mixing is carried out, mixture liquid is prepared, and the pH value of the mixture liquid is regulated to range from 5.5 to 6.5; amylase is added into the mixture liquid, thermal insulating processing is carried out; high-temperature sterilizing is carried out on the thermal insulated mixture liquid in advance, cooling is carried out, and fermenting bacteria are inoculated into the mixture liquid to be subjected to fermenting. According to the fermenting method, the problem that the product viscosity is greatly improved after sterilizing is carried out is solved, the material viscosity can be reduced for 20 times to 7000 times or more, the energy consumption of fermenting and stirring can be greatly lowered, and the fermenting cost is lowered. In addition, due to the fact that the viscosity is lowered, the material fluidity is obviously improved, and the fermenting mass and oxygen transferring processed can be obviously enhanced, so that the fermenting process is accelerated, and the product quality is evener and more stable.

Description

technical field [0001] The invention relates to the technical field of feed, in particular to a fermentation method for fermenting liquid feed. Background technique [0002] In recent years, the development of my country's animal husbandry and breeding industry has advanced by leaps and bounds, and the breeding industry has continued to develop in a large-scale and integrated manner. However, the abuse of drugs such as antibiotics and environmental pollution that emerged during the development process have attracted more and more attention. Today, when food safety is of great concern, many countries have banned the use of antibiotics in feed. The future green ecological breeding method is an inevitable development direction. Fermented liquid feed is a hotspot in research at home and abroad in terms of healthy farming. Numerous experimental data show that this new type of feed has many incomparable advantages over traditional feed. Fermented liquid feed has the characteris...

AI Technical Summary

Problems solved by technology

In this case, due to the increase in viscosity, the energy consumption such as stirring will increase significantly, and the energy consumption in the fermentation process accounts for a very large part of the fermentation cost, and the increase in energy consumption will greatly increase the production cost; in addition, due to the increase in material viscosity , the process of oxygen and mass transfer is blocked, the fermentation process is forced to prolong, and the utilization rate of the equipment is reduced. At the same time, due to the poor fluidity of the material, the product quality will be unstable and uneven, which will affect the promotion and application of the product; the material has a high viscosity. At the same time, it also causes serious sticky walls, which brings great difficulties to the cleaning of the fermentation system and feeding system, and the residual materials will cause the growth of spoilage bacteria, especially in breeding enterprises due to the cumbersome work, which greatly affects the Approval and promotion of related feed

[0007] Third, there is usually no step of high-temperature treatment to remove anti-nutritional factors in the fermentation feed liquid. Simply relying on the fermentation process, a large amount of anti-nutritional factors remain in the fermented material

For example, phytic acid in cereals can strongly bind to metal ions such as Ca, Fe, Mg, Zn and Mn, making them insoluble and thus making nutrients unavailable (Bohn L, Journal of Zhejiang University Science B9, 165-191 (2008) )

However, the high-temperature aging will cause the material to agglomerate or become a complete solid state, so that subsequent fermentation cannot be carried out.