Production method of clostridium butyricum and clostridium butyricum feed additives

The invention discloses a production method of clostridium butyricum and clostridium butyricum feed additives, and belongs to the technical field of clostridium butyricum. A method for selecting a strain for fermentation of clostridium butyricum comprises the following steps that 1, clostridium butyricum is extracted; 2, strain separation is conducted on clostridium butyricum; 3, bacteriostatic activity screening is performed on clostridium butyricum; 4, strain identification is conducted on clostridium butyricum. By screening the strain with good butyric acid producing property from clostridium butyricum, the coordinated regulation and antibiotic substitution functions of solid-state co-culture clostridium butyricum lactobacillus acidophilus, metabolite and the like in intestinal tracts are achieved. Meanwhile, high-fiber byproducts such as soybean meal, grape peel residues and corn DDGS are utilized, and by means of solid-state co-culture and fermentation of the clostridium butyricumlactobacillus acidophilu