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Effects of Enterococcus faecalis administration on the community structure of airborne bacteria in weanling piglet and layer hen houses

文献类型： 外文期刊

作者： Cheng, Shoutao 1 ; Chen, Mo 1 ; Gao, Min 1 ; Qiu, Tianlei 1 ; Tian, Shulei 2 ; Li, Shuyan 3 ; Wang, Xuming 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Agrobiotechnol Res Ctr, Beijing Key Lab Agr Genet Resources & Biotechnol, Beijing 100097, Peoples R China

2.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China

3.Shandong Agr Univ, Coll Resources & Environm Sci, Tai An 271018, Shandong, Peoples R China

关键词： bacterial community structure; Ente-rococcus faecalis; high-throughput sequencing; layer hen; piglet

期刊名称：JOURNAL OF GENERAL AND APPLIED MICROBIOLOGY （ 影响因子：1.452； 五年影响因子：1.479 ）

ISSN： 0022-1260

年卷期： 2021 年 67 卷 4 期

页码：

收录情况： SCI

摘要： Probiotics have been shown to improve microbial compositions in animal intestine and feces, but the effects of probiotic administration on airborne microbial composition in animal houses remain unclear. In this study, we investigated the effects of dietary Enterococcus faecalis on the bacterial community structure in the air of piglet and layer hen houses. Indoor air and feces from piglet and layer hen houses were sampled after supplementing E. faecalis in feed for 60 days, and bacterial community structures were analyzed using Illumina high throughput sequencing technology. Results showed that Chao1, ACE, Shannon, and Simpson indices of bacterial diversity did not significantly change in feces or indoor air of piglet or layer hen after supplementation with E. faecalis (P 0.05). However, E. faecalis administration resulted in a decrease in the relative abundance of Proteobacteria (P < 0.05). In addition, E. faecalis significantly reduced the relative abundance of opportunistic pathogens such as Acinetobacter, Escherichia, and Shigella (P < 0.05), and beneficial bacterial genus such as Lactobacillus was significantly enriched in both feces and indoor air (P < 0.05). These changes should be of benefit to livestock, farm workers, and the surrounding environment.

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