China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (11): 3687-3695.doi: 10.16431/j.cnki.1671-7236.2020.11.032

• Preventive Veterinary Medicine • Previous Articles     Next Articles

Effect of Fermented Traditional Chinese Medicine on Preventing and Treating Colibacillosis and Immune Regulation in Broilers

GU Yanli1, SHAN Chunqiao1, CAO Yanzi1, LIU Yan1,2, LIN Yang1, WANG Xiaoyu1, JIANG Guotuo1,2   

  1. 1. Dalian Sanyi Pharmaceutical Co., Ltd., Dalian 116036, China;
    2. Jiangsu Sanyi Institute of Life Sciences, Pizhou 221300, China
  • Received:2020-04-22 Online:2020-11-20 Published:2020-11-20

Abstract: This study was aimed to evaluate the efficacy of the fermented traditional Chinese medicine on treating colibacillosis and immune regulation in chickens.240 healthy 1-day-old AA White-feathered broilers were selected to carry out the control test of Escherichia coli O78 LD50 and compound Chinese medicine fermentation broth on colibacillosis.The therapeutic effect was evaluated at 28 days old,and the immune organ index,antioxidant index and intestinal flora were measured at 28 and 42 days old.The results showed that the infection time of Escherichia coli was delayed from 4 to 24 h after the treatment of fermentation liquid of traditional Chinese medicine fermented by Lactobacillus plantarum and Bacillus subtilis.The effective rates of high dose group (1.0 g/mL),medium dose group (0.5 g/mL) and antibiotic group (neomycin sulfate) were 80.0%,76.7% and 80.0%,and the cure rates were 80.0%,70.0% and 70.0%,respectively.Compared with infection and antibiotic groups,the thymus index and bursa index in high dose group at 28 days old were increased by 165.6%(P<0.05),25.4%(P>0.05) and 82.6%(P<0.05),94.3% (P<0.05),respectively.The thymus index and bursa index at 42 days old were increased by 97.4%,82.0% and 43.4%,27.5% (P<0.05),respectively.The T-AOC,TP,GSH-Px and T-SOD antioxidant indexes were significant difference (P<0.05),and significantly increased the content of lactic acid bacteria in intestine and reduced the content of Escherichia coli at 28 and 42 days old (P<0.05).In conclusion,the medium dose group of fermented traditional Chinese medicine (0.5 g/mL) had obvious antibacterial effect and provided substitute for antibiotics,the high dose group of fermented traditional Chinese medicine (1.0 g/mL) was significantly better than antibiotics for broilers.

Key words: fermented traditional Chinese medicine; Escherichia coli; broilers; efficacy; antioxidant index; intestinal flora; immune regulation

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