Yiwei Fungin is a sort of antibiotic of anti-parasite, which prevent any sort of health-affecting and production performance from the parasite inside and outside by using low dosage.

伊维菌素是一类具有抗寄生虫活性的大环内酯类抗生素，低剂量就能有效防治影响动物健康和生产性能的各种内外寄生虫。