Both EM 0.14 and 1.4mmol/L increased the mean contractile amplitude (except LMDC) and the contractile frequency of all strips. EM 0.14 and 1.4mmol/L also increased the resting tension of CMPC, LMDC and CMDC.

• 0 14和 1 4mmol/L红霉素明显增加结肠各部位肌条的收缩幅度 (LMDC除外 )和频率 ,同时增大CMPC、LMDC和CMDC的张力。