Fermented feed and preparation method thereof

The invention discloses a fermented feed and a preparation method thereof, and belongs to the technical field of functional feed fermentation preparation. The fermented feed is prepared from the following raw materials: soybean meal, peanut meal, bran, fish scale powder, tangerine pith, fermented fructus cannabis, a micro-ecological complex microbial inoculant, glutamic acid residues, chili oil residues and an antioxidant. According to the invention, a feed formula and a fermentation process are improved and optimized, the fructus cannabis is subjected to pretreatment fermentation, and meanwhile, saccharomyces cerevisiae, lactobacillus acidophilus, candida utilis and thermoascomycetes are used for culture and fermentation to prepare a micro-ecological complex microbial inoculant; pretreatment fermentation is matched with the micro-ecological complex microbial inoculant, so that the pigs can better absorb and convert unsaturated fatty acid in the feed. The prepared fermented feed can increase the deposition am