The invention discloses a method for preparing ecological fish feed through
biogas residue enzymolysis, and relates to the technical field of waste
resource utilization and
aquaculture. The method comprises the following steps: uniformly mixing
biogas residues with
fulvic acid and peanut vines, adding a composite
enzymatic hydrolysis bacterium preparation, carrying out sealed
enzymatic hydrolysis to obtain an
enzymatic hydrolysis fermentation material, uniformly mixing the
fermentation material with dried orange peel, haws and sesame-seed cakes, carrying out crushing to obtain
powder, adding brown
sugar,
corn starch,
soybean meal,
calcium powder and tea polyphenols into the
powder to form a dough, carrying out
steaming,
drying and kneading to obtain particle powder, and finally, mixing boiled oil and edible spice, and spraying the mixture on the surface of the particle powder to obtain the fish feed finished product. According to the invention, a
biogas residue enzymolysis technology is created, and the granulated particles are sprayed with oil, so that the floating performance of the fish feed particles in water is increased, the fish feed particles are convenient to eat by fishes, the
dissolution of the fish feed particles in water is slowed down, and the
utilization rate is increased; and in addition, the addition of the dried orange peel, the haws, the sesame-seed cakes and other substances can improve the
flavor and
nutrition of the product, and the method is suitable for market promotion.