1. Introduction of enzymes and enzyme preparations

Enzymes is a biocatalyst generated by living cells that can catalyze specific biochemical reactions. While enzyme preparation is a biological product with catalytic function after the enzyme is purified and processed.

2 Principles of feed enzyme preparation

Crack the cell wall of plant raw materials, effectively degrade the anti-nutritional factors in the feed, supplement the endogenous enzymes, improve the utilization of nutrients, and reduce the cost of feed formula, thereby increasing production performance; reducing fecal excretion and wet manure and its viscosity, reduce environmental pollution, improve the environment of poultry house; bioligosaccharides produced by degradation can effectively print pathogens in the intestine colonization, regulate intestinal flora balance, reduce intestinal diseases of livestock and poultry, improve livestock and poultry health, and improve group immunity Expand the amount of unconventional feed ingredients, reduce feed costs, and stabilize the quality of feed products.

3. Utilization principles of feed enzyme preparations

Feed enzyme preparations should be designated by diets and animals. These two sectors should be the basic principles for the design of multi-enzyme systems for feed enzyme preparations. Enzyme formulation should be designed according to the specificity of the feedand the livestock.

4. Determination of feeding enzyme preparation formula

Fully understand and study the functions and properties of each single enzyme.

B. Use sophisticated chemical analysis methods and methylation analysis techniques to understand feed structure (from premixed homes), chemical properties and enzyme system required for degradation of component.

C. Find out the enzyme system that animals needed through monitoring and simulating of digestive enzyme activity in healthy animals.

D. After determining the enzyme species, establish equations based on the general data of enzymatic properties and digestive physiology to deduce the approximate range of enzyme activity.

E. Screen the best formulation by animal test and in vitro digestion test.

5.Post-treatment technology of feeding enzyme preparation

Different from purification in biochemical engineering, the post-treatment technology of feeding enzyme preparation refers to the post-treatment technology aiming at improving the stability of enzyme and having the ability of fixed-point release. The effectiveness of post-treatment technique is one of the criteria to evaluate the quality of a feed enzyme preparation product.

6.Development direction of feed enzyme preparations

Enzyme preparation is one of the feed additives with safe and high efficiency, which enjoys the most promising development and application prospects. However, due to the complex biological characteristics and action rules of the enzyme preparation itself, many problems remain unclear, the actual application effect of the enzyme preparation is still unstable, and its efficacy in improving the utilization rate of feed, reducing environmental pollution, improving animal production level and economic benefits has not been fully realized. To solve these problems, systematic and in-depth studies must be carried out on the standardization of enzyme activity analysis methods, the stability of enzyme preparations, the link between enzyme preparations and dietary components, the relationship between enzyme preparations and endogenous enzymes, and the correlation between enzyme preparations and feed technology.