›› 2015, Vol. 42 ›› Issue (2): 478-486.doi: 10.16431/j.cnki.1671-7236.2015.02.038

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Effect of Bacillus coagulans on Growth Performance,Intestinal Lesions and Immune Organs Index of Broilers Infected with Clostridium perfringens

GONG Xiu-yan, LIU Shun-de, WEI Ming, JIANG Qiu-fei   

  1. School of Agriculture, Ningxia University, Yinchuan 750021, China
  • Received:2014-07-07 Online:2015-02-20 Published:2015-02-13

Abstract: This study was conducted to investigate the effect of dietary Bacillus coagulans on growth performance,intestinal lesions and immune organs index of broilers infected with Clostridium perfringens.A total of 312 Kebao 500 male broilers were randomly divided into 4 groups with 6 replicates per group, and 13 birds per replicate.The 4 treatment groups were an uninfected Clostridium perfringens group,an infected Clostridium perfringens group and the level supplemented with Bacillus coagulans at 0 and 400 mg/kg of feed using a 2×2 factorial completely randomized design.The whole experiment period was 35 days.The results showed that Clostridium perfringens infection decreased the ADG at days 15 to 35 (P<0.05),severed the necrotic enteritis-related lesions at day 28 (P<0.01),reduced the bursa index at day 35 (P<0.01).Bacillus coagulans supplementation increased the ADG and decreased the F/G at days 15 to 35(P<0.05),improved the lesion score (P<0.05),increased the thymus index at day 28 and the bursa index at day 35 (P<0.01).In the case of necrotic enteritis-related lesion,there was significantly interacted between Clostridium perfrigens and Bacillus coagulans.In conclusion,dietary supplementation of Bacillus coagulans could promote growth performance,improve immune index and enhance immune function against necrotic enteritis of broilers infected with Clostridium perfrigens.

Key words: Bacillus coagulans; Clostridium perfrigens; growth performance; intestinal lesions; immune organs index; broilers

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