The invention provides a method for preparing an organic
zinc enzyme preparation. The method comprises the following steps of: mixing materials such as
bran, bean pulp, powdered
rice hulls, solution of
zinc sulfate and the like to obtain a mixture, stirring uniformly, then performing high-temperature high-pressure sterilization, inoculating a koji plate strain of Candida utilis after the sterilization, stirring uniformly and then culturing, then taking a cultured material out, inoculating a koji plate strain of
Aspergillus usamii, culturing again, taking a subcultured material out, inoculating a koji plate strain of
bacillus subtilis, stirring uniformly and then culturing for the third time, and oven-
drying and crushing a material obtained by the culturing for the third time to obtain the organic
zinc enzyme preparation. In the method, a production technology is simple, the production cost is low, the three
bacteria are adopted for three continuous transformations, and the
transformation ratio from inorganic zinc to organic zinc is up to over 98 percent. The prepared
enzyme preparation integrates organic trace elements, an enzyme preparation and probiotics into a whole, and can increase the
disease resistance of raised animals and promote the healthy growth of the raised animals.