由于多醚类抗生素能抑制危害家禽的球虫病,提高反刍动物的饲料转化率,有显著的经济效益,而引人瞩目.近十年发展迅猛,品种已激增至70多个,所以有必要按照它们对阳离子的选择性和化学结构特征加以分类,并进而按它们分子里所含螺缩酮(Spiroketal)功能团的有无与性质再细分亚组如下表: Since polyether antibiotics can inhibit the coccidiosis that endanger the poultry and improve the feed conversion rate of ruminants, it has obvious economic benefits and attracts people’s attention .In the past ten years, the rapid development has led to the surge of varieties to more than 70, so it is necessary According to their cation selectivity and chemical structural characteristics of the classification, and then according to their molecules contained spiroketal (Spiroketal) functional groups with the nature and nature of sub-sub-sub-group as follows: