The invention provides a micro-ecological fermented
protein feed and a preparation method, wherein the feed is prepared by mixing bean pulp and silkworms with quality ratio 90-98:2-10, then cooking to obtain
solid state fermention medium, then inoculating mixed strains of
bacillus subtilis,
Saccharomyces cerevisiae,
lactobacillus and Rhizopusoligosporus on
solid fermention medium, then co-mixing for 30-45 hours at 33-37 DEG C,
drying fermentation products after completing fermenting, crushing and obtaining the micro-ecological fermented
protein feed. The inventive micro-ecological fermented
protein feed contains a plurality of biological active peptides, content of
small peptide reach more than 22%, which is favourable for
digestion and development; contains
lactobacillus, microzyme, which is favourable for controlling useful microbiological
population in intestinal tracts of animals; has good delicious
flavor and good luring effect, advances young animals for
ingestion; contains soybean isoflavone more than 0.05%, markedly increases
immunity of bodies, increases producibility of animals; relieving odmour of fecal waste; fully takes place of
animal protein feed of
fish meal and
plasma protein flour and the like.