The characteristic of IBV-M41 and IBV-Ma5 strains cultured in tracheal organ was assessed by the ciliary activity of chicken embryo tracheal organ.

• 本试验以鸡胚气管环纤毛运动作为指示系统,研究传染性支气管炎病毒IBV-M41和IBV-Ma5的气管环培养特性。