5味中药对鸡大肠杆菌的体外抑菌试验

Bacteriostasis Effect of Five Traditional Chinese Drugs on Chicken Escherichia coli

为中药防治鸡大肠杆菌病的临床实践提供科学依据,采用常规的琼脂平板培养法、药敏试验的滤纸片法等,选取黄连、连翘、紫花地丁、黄芩和白头翁5味中药对鸡致病性大肠杆菌进行了体外抑菌试验。结果表明:5味中药对鸡大肠杆菌均有一定的抑菌效果,其中,黄连的抑菌直径为15.5mm,抑菌活性最强;白头翁、连翘和紫花地丁次之,分别为14.0mm、13.0mm和12.2mm;黄芩的抑菌活性较弱,为10.1mm。黄连、白头翁抑菌效果较好,可在临床上应用。

The in vitro bacteriostasis test of five traditional Chinese drugs against chicken Escherichia coli was carried out to provide scientific basis for controlling chicken Escherichia coli by using traditional Chinese drugs.The results showed that five tested traditional Chinese drugs all had the certain bacteriostasis effect on chicken Escherichia coli and the bacteriostasis diameter of Coptis chinensis,Chinese pulsatilla root,Forsythia suspensa,tokyo violet herb and baical skullcap root was 15.5mm,14.0mm,13.0mm,12.2mm and 10.1mm respectively.Coptis chinensis and Chinese pulsatilla root with good bacteriostasis effect can be applied in control of chicken Escherichia coli.