›› 2018, Vol. 45 ›› Issue (7): 1990-2000.doi: 10.16431/j.cnki.1671-7236.2018.07.033

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Study on Screening of Traditional Chinese Medicine Formula and Its Anti-bacterial Effects Preventing Bovine Mastitis

SUN Jing1, YE Dongyang2, WANG Xurong1, HOU Yanhua1, WANG Lei1, ZHANG Jingyan1, ZHANG Kai1, ZHANG Kang1, LI Jianxi1, YANG Zhiqiang1   

  1. 1. Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China;
    2. Institute of Agricultural Sciences in Coastal Area of Jiangsu Province, Yancheng 224002, China
  • Received:2017-12-27 Online:2018-07-20 Published:2018-07-20

Abstract:

In order to provide new methods and approaches to the treatments of bovine mastitis,this study screened out the best prescription for inhibiting the main pathogens causing mastitis in dairy cows according to the principles of dialectical methods that Chinese veterinarians treat diseases.The Dandelion,Purslane,Honeysuckle,Purple Flower,Radix Paeoniae Rubra,Radix Paeoniae Alba,Chrysanthemi Flos,Scutellariae Radix,Reed and Carthami Flos were used as materials in this experiment.A preliminary screening of antibacterial Chinese herbal medicines was conducted through L12 (211) orthogonal test,the drug group was further screened by the orthogonal test of L16 (45),and the anti-bacterial effect of Chinese medicine group on the main pathogenic bacteria of bovine mastitis was determined by Oxford cup method in vitro.The minimum antimicrobial concentration (MIC) and minimum bactericidal concentration (MBC) were detected by two-fold dilution method and plate counting.The results showed that the optimal factors of group were Paeoniae Radix Rubra, Scutellariae Radix,Carthami Flos,Paeoniae Radix Alba and Chrysanthemi Flos,and the proportion was 3:3:3:1:2.The bacterial inhibition diameters for Escherichia coli was 17.39 mm,and MIC and MBC were 62.50 and 125.00 mg/mL respectively.The bacterial inhibition diameters for Staphylococcus aureus was 25.44 mm, and MIC and MBC both were 31.25 mg/mL.In conclusion,the study successfully screened out a new traditional Chinese medicine that had good antibacterial and antiseptic effects for the bacteria causing bovine mastitis.

Key words: bovine mastitis; Chinese medicines formula; orthogonal test; MIC; MBC; Oxford cup method

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