Disclosed herein is a method for treating infection by an enteropathogen and/or enhancing growth performance, which includes administering to a subject in need thereof a composition containing a ferrous amino acid chelate. Also disclosed herein is an animal feed containing the ferrous amino acid chelate.本發明揭示一種用於治療腸道病原體感染和/或提升生長性能的方法，其包括對一需要的個體投藥以一含有胺基酸亞鐵螯合物的組成物。本發明亦提供一種含有胺基酸亞鐵螯合物的動物飼料。
