The present invention provides a high-
protein bio-fermented aquatic feed and a preparation method thereof. The aquatic feed comprises the following raw materials in parts by weight: 20-30 parts of imported
fish meal, 10-15 parts of compound minerals, 5-10 parts of bioactive peptides, 5-10 parts of
lysine, 5-10 parts of compound trace elements, 3-8 parts of compound vitamins, 3-6 parts of
herbal extracts, 2-5 parts of compound probiotics, 2-4 parts of immune polysaccharides, and 1-3 parts of compound enzymes; the
herbal extracts are prepared by fermenting
astragalus membranaceus,
isatis root, liquorice root,
calotropis gigantea,
ventilago leiocarpa benth, clove, rhizoma chuanxiong, and galangal officinale. By organically integrating imported
fish meal,
astaxanthin-
peptide chelate,
herbal extracts, compound immune polysaccharides, compound probiotics and various nutrients, the present invention realizes the synergistic effect of "promoting feeding - enhancing
digestion - strengthening liver and
gall - enhancing
immunity - resisting stress - inhibiting
bacteria - stabilizing
water quality", significantly improves the growth rate,
survival rate and comprehensive breeding benefit of
crustacean aquatic animals, and has good economic value and application prospect.