3 years ago

Bacillus licheniformis normalize the ileum microbiota of chickens infected with necrotic enteritis

Dong Zeng, Yi Zhou, Shuai Xu, Bo Jing, Mengjia Zhou, Yan Zeng, Xueqin Ni, Hui Zhu, Yicen Lin, Kangcheng Pan, Hesong Wang
Necrotic enteritis (NE) is a severe intestinal disease, which can change gut microbiota and result in a high cost for the poultry industry worldwide. However, little is known regarding how the gut microbiota of NE chicken ileum are changed by Bacillus licheniformis. This study was conducted to investigate how ileum microbiota structure was changed by B. licheniformis in broiler chickens challenged with Clostridium perfringens-induced NE through Illumina MiSeq sequencing. The broilers were randomly separated into four groups: the negative control group (NC), the positive control group (PC), the fishmeal and coccidia group (FC), and the PC group supplied with feed containing B. licheniformis (BL). Compared to the PC and FC, alpha diversity, beta diversity, and the bacterial taxa of the ileum microbiota were more similar in BL and NC. Some genera, which were related to the NE control, became insignificant in BL with NC, such as Lactobacillus, Lactococcus, Bacteroides, Ruminococcus and Helicobacter. The PICRUSt analysis revealed that a tumour suppressor gene, p53, which was negatively correlated with Helicobacter, was enriched in the BL group. Our findings showed that the ileum microbiota disorder caused by NE in chickens was normalized by dietary B. licheniformis supplementation.

Publisher URL: https://www.nature.com/articles/s41598-018-20059-z

DOI: 10.1038/s41598-018-20059-z

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