Pig-raising fermentation bacterial agent for biological and environment-friendly fermentation bed and preparation method thereof

The invention discloses a pig-raising fermentation bacterial agent for a biological and environment-friendly fermentation bed and a preparation method thereof. The preparation method comprises the following steps of: firstly selecting seven strains of bacteria, namely Morchella sp. CGMCC (China General Microbiological Culture Collection Center) NO.5.496, Bacillus stearothermophilus CGMCC NO.1.1923, Bacillus stearothermophilus CGMCC NO.1.1866, Bifidobacterium thermoacidophilum CGMCC NO.1.2282, Bacillus subtilis subsp. subtilis CGMCC NO.1.108, Streptomyces anandii CGMCC NO.4.1314, Saccharomycescerevisiae CGMCC NO.2.2081 as production and fermentation parent agents, wherein the viable count of each production and fermentation parent agent is not less than 108/ml; and then performing freeze-drying on the seven strains of the production and fermentation bacterial agents, fully and uniformly mixing according to the weight of each powder freeze-dried strain, and then performing vacuum packaging to obtain a complex b