Screening and efficacy observation of traditional Chinese medicine against chicken pathogenic Escherichia coli | 抗鸡致病性大肠杆菌中药的筛选及其疗效观察
2009
Pang Xianghong, Agricultural University of Hebei, Baoding (China), College of Animal Science and Technology | Chu Xiuling, Liaocheng University, Liaocheng(China), Agricultural School | Su Jianqing, Liaocheng University, Liaocheng(China), Agricultural School
[Objective] The aim of this study was to lay a foundation for obtaining effective traditional Chinese medicine preparations controlling chicken colibacillosis. [Method] With the western medicine Lomefloxacin Hydrochloride and Sodium Chloride Injection as the control, drug sensitivity tests of 15 single traditional Chinese herbs and seven self-made Chinese herbal compounds were conducted. Subsequently, the single traditional Chinese herbs presenting good in vitro antibacterial effects against Escherichia coli and all the seven compounds were given to the chicks artificially infected with E. coli to observe their efficacies. [Result] The results of drug sensitivity tests showed that all the 15 traditional Chinese herbs had certain antibacterial effect against E. coli, among which aloe, pomegranate rind and radix sanguisorbae were the best. Compound 1, 2 and 5 had good antibacterial effects in vitro. By in vivo test, traditional Chinese medicines showed superior efficacies on infected chicks than western medicine, and compound 1 and 2 performed well. [Conclusion] Traditional Chinese medicine preparation are good at controlling Chicken colibacillosis, but their bacteriostasis mechanism in vivo was different with that in vitro.
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