High-density fermenting method of bacillus coagulans for livestock and poultry, as well as preparation prepared by method and application thereof

The invention discloses a high-density fermenting method of bacillus coagulans for livestock and poultry, as well as a preparation prepared by the method and application thereof. The strain collection number of the bacillus coagulans is CICC (China Center of Industrial Culture Collection) No.20138. The method comprises the following steps: performing liquid fermentation on the bacillus coagulans;performing solid alternating temperature continuous fermentation; ventilating in later phase of solid fermentation; continuing fermenting and drying, and preparing a bacillus coagulans preparation initial product after the drying is completed; further crushing and screening to obtain a high-density bacillus coagulans preparation final product, wherein the number of strains of the final product is115.5*10 cfu.g , and the spore rate is 77.2%. The product has the effects of increasing the weight and preventing diarrhea of piglet, and the application adding concentration is 0.05wt%. The number of strain preparation is far higher than that of similar strain preparations (20*10 cfu.g ) in the market, so that the preparation has wide market competitively in the livestock and poultry breeding industry.