Natural antibiotic-replacement feed granules as well as preparation method and application thereof

The invention relates to natural antibiotic-replacement feed granules as well as a preparation method and application thereof. The granules consist of 23-27 parts of stilbene component extractum and 73-77 parts of auxiliary materials, wherein the auxiliary materials consist of soluble starch and dextrin in the weight ratio of the soluble starch to the dextrin being (42-54) to (14.5-19), the stilbene component extractum, the soluble starch, the dextrin and solvents which are additionally added are mixed to make a soft material, the soft material is screened, and drying is performed, so that the granules are made; and the weight ratio of the solvent to the soluble starch to the dextrin is (23-27) to (42-50) to (14.5-18.5 ). Through unit operation of granulation, drying and finishing, and the working procedure steps of ultraviolet quality control, detection, packing and the like, the invention provides the feed granules for resisting drug-resistance bacteria including MRSA (methicillin-resistant staphylococcus a