The invention relates to a method for preparing a biological
fermentation feed from by-products generated during production of
corn starch by a wet method, and belongs to the field of
feed processing.By-products of wet corn husks, corn germ
meal and corn steep liquid, in the production process of
corn starch by the wet method are used as raw materials in the proportion of the gunite corn husks tothe corn germ
meal to the corn steep liquid being 2.4 to 1.2 to 1. The method comprises the following steps of adding a 30%
sodium hydroxide solution, regulating the pH value to 4.3-4.7, adding waterto regulate the
moisture content of a mixture to 45%, adding species which are 1% of total production quantity, performing thorough mixing, and then performing anaerobic
fermentation at 30-40 DEG C for 72 hours or above so as to prepare qualified
biology feed products. The biological
fermentation feed product prepared by the method disclosed by the invention contains a large quantity of probioticcolonies, an immune
enhancer, a
growth factor, amino acids and the like. After the biological fermentation feed is added to animal feeds,
flora of animal intestines can be regulated to be balanced, and the
immunity and the
irritability are improved.