Deodorization type feed additive, preparation method, use method and evaluation method

Abstract

The invention discloses a deodorization type feed additive, a preparation method, a use method and an evaluation method. The feed additive is prepared through the following steps of performing solid-state culture on lactobacillus plantarum, bacillus licheniformis, natto bacillus and bacillus amyloliquefaciens, performing drying to obtain lactobacillus plantarum dry powder, bacillus licheniformis dry powder, natto bacillus dry powder and bacillus amyloliquefaciens dry powder, and mixing the lactobacillus plantarum dry powder with the bacillus licheniformis dry powder, the natto bacillus dry powder and the bacillus amyloliquefaciens dry powder in the weight ratio of the lactobacillus plantarum dry powder to the bacillus licheniformis dry powder, to the natto bacillus dry powder to the bacillus amyloliquefaciens dry powder being (1-3) to (1-6) to (1-6) to (1-3) so as to obtain the additive. An advanced solid-state fermentation technique is adopted, high-density culture is performed on thelactobacillus plantarum, the bacillus licheniformis, the natto bacillus and the bacillus amyloliquefaciens, and the additive is rich in various enzymes and metabolites, so that pathogenic bacteria inlivestock and poultry breeding environment and intestinal tracts can be effectively restrained, nutrient absorption is promoted, reproduction of harmful bacteria in excrement is restrained, macromolecular nitrogenous substances in the excrement can be rapidly decomposed, environment odor is reduced, the growth properties of livestock and poultry can be improved, and the feed additive is convenient to use and low in cost.

Description

technical field [0001] The invention relates to the technical field of microbial fermentation, in particular to a deodorizing feed additive, a preparation method, a use method and an evaluation method. Background technique [0002] In recent years, with the rapid development of my country's breeding industry, intensive large-scale breeding has become a trend in the development of livestock and poultry breeding. However, the environmental pollution caused by the odor emitted by large-scale livestock and poultry farms is also increasing. The odor will cause harm to the growth of livestock and poultry, thereby affecting the performance of livestock and poultry growth, and also affecting the living environment of surrounding residents. Even in good health. Livestock and poultry manure will produce a large amount of harmful gases such as ammonia nitrogen, hydrogen sulfide, skatole, and methane after fermentation. These gases will not only damage the ecology, but also directly af...

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Problems solved by technology

However, the environmental pollution caused by the odor emitted by large-scale livestock and poultry farms is also increasing. The odor will cause harm to the growth of l...

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