Method for producing peptide-rich and prebiotic-rich feed by fermenting soybean meal and preparation device of peptide-rich and prebiotic-rich feed

The invention discloses a method for producing a peptide-rich and prebiotic-rich feed by fermenting soybean meal and a preparation device thereof, and belongs to the technical field of biological processing of agricultural products, the method comprises the following steps: washing, chopping and juicing auxiliary materials, and respectively collecting juice and residues; fermenting the residues to obtain an auxiliary material fermented product; and mixing soybean meal with juice and water, carrying out aerobic fermentation, adding auxiliary material leavening, carrying out anaerobic fermentation, and finally drying, crushing, weighing and packaging. The preparation device comprises an inclined tank body and an auxiliary material fermentation tank, an inclined fixed cylinder fixedly connected with the inclined tank body is arranged on the axis of the inclined tank body, and a spiral push plate is arranged in the inclined fixed cylinder. According to the invention, the peptide-rich and prebiotic-rich feed which