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Consuming fermented distillers＇ dried grains with solubles (DDGS) feed reveals a shift in the faecal microbiota of growing and fattening pigs using 454 pyrosequencing

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Journal of Integrative Agriculture 2017年第4期16卷 900-910页

作者： WANG Jin HAN Ye ZHAO Jin-zhao ZHOU Zhi-jiang FAN Huan School of Chemical Engineering and Technology Tianjin University Tianjin 300072 P.R.China Tianjin Kuntai Environment & Energy Science and Technology Development Co. Ltd. Tianjin 300191 P.R. China Tianjin Animal Science and Veterinary Research Institute Tianjin 300381 P.R.China Key Laboratory of Systems Bioengineering Ministry of Education Tianjin 300072 P.R China

The objective of this study was to investigate pig fed by Bacillus coagulans-fermented distillers＇ dried grains with solubles （DDGS） on the faecal microbial composition and diversity using 454 pyrosequencing. Healthy crossbred （Durocx Yorkshirex Landrace） growing and fattening pigs （n=48）, with an average initial body weight of 65 kg, were divided into two groups （24 replicates per group; four pens per group; six pigs per pen）, and given either DDGS feed as the control, or B. coagulans-fermented DDGS feed as the treatment. faecal samples were collected on day 0, 7, 14, 21, and 28. DNA was extracted, and the V3-V6 region of the 16S rRNA gene was amplified. The fermented DDGS feed affected the relative abundance of bacteria populations at the phylum, genus, and species levels. At the genus level, the consumption of fermented DDGS feed led to higher relative abundances of faecal Prevotella, Lactobacillus, Clostridium, Bifidobacterium, Roseburia, and Bacillus, and lower relative abundances of faecal Escherichia, Ruminococcus, Dialister, unclassified Lachnospiraceae, unclassified Ruminococcaceae, and unclassified Enterobacteriaceae than in the control. At the species level, the consumption of fermented DDGS feed led to higher relative abundances of faecal Prevotella sp., Lactobacillus johnsonii, Lactobacillus fermentum, Lactobacillus mucosae, Lactobacillus reuteri, Clostridium butyricum, Bifidobacterium sp., and Roseburia sp., and lower relative abundances of faecal Prevotella copri, Escherichia coil, Ruminococcus gnavus, Ruminococcus flavefaciens, and Dialister sp. than in the control. Principal coordinates analysis indicated a distinct separation in the faecal microbial communities of pigs that were fed the fermented and unfermented DDGS feed. Fermented DDGS feed significantly increased the average daily gain （ADG） of pigs, and significantly decreased the average daily feed intake （ADFI） of feed and feed/gain （F/G）. Thus, our results demonstrate a beneficial shift in t

关键词： faecal microbiota growing and fattening pigs pyrosequencing fermented DDGS feed

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The temporal fluctuations and development of faecal microbiota in commercial layer flocks

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Animal Nutrition 2023年第4期15卷 197-209页

作者： Nitish Joat Yadav S.Bajagai Thi Thu Hao Van Dragana Stanley Kapil Chousalkar Robert J.Moore School of Animal and Veterinary Sciences The University of AdelaideRoseworthySouth Australia5371Australia Institute for Future Farming Systems Central Queensland UniversityRockhamptonQueensland4701Australia School of Science RMIT UniversityBundooraVictoria3083Australia

The microbiota of the gastrointestinal tract influences gut health,which in turn strongly impacts the general health and productivity of laying *** is essential to characterise the composition and temporal development of the gut microbiota in healthy layers raised under different management systems,to understand the variations in typical healthy microbiota structure,so that deviations from this might be recognised and correlated with production and health issues when they *** present investigation aimed to study the temporal development and phylogenetic composition of the gut microbiota of four commercially raised layer flocks from hatch to end of the production ***-intrusive faecal sampling was undertaken as a proxy to represent the gut *** of 16S rRNA gene amplicons was used to characterise the *** diversity analysis indicated that each faecal microbiota was different across the four flocks and had subtly different temporal development *** these inter-flock differences,common patterns of microbiota development were *** and Proteobacteria were dominant at an early age in all *** microbiota developed gradually during the rearing phase;richness and diversity increased after 42 d of age and then underwent significant changes in composition after the shift to the production farms,with Bacteroidota becoming more dominant in older *** developing a more profound knowledge of normal microbiota development in layers,opportunities to harness the microbiota to aid in the management of layer gut health and productivity may be more clearly seen and realised.

关键词： Chicken microbiota faecal microbiota Firmicutes Housing condition Proteobacteria

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Bacterial community mapping of the AIA mouse gastrointestinal tract under dietary intervention with skipjack tuna(Katsuwonus pelamis)elastin peptides

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Food Bioscience 2023年第3期53卷 1479-1488页

作者： Qiaoli Wu Bing Liu Rongxian Yu Xiaoling Sun Ziyan Wang Jun Zhou Chenyang Lu Haitao Wan Jing Zhang Jiaojiao Han Xiurong Su State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Ningbo UniversityNingboChina School of Marine Science Ningbo UniversityNingboChina Key Laboratory of Aquaculture Biotechnology(Ningbo University)Ministry of Education Ningbo UniversityNingboChina Vigor Health Products Co. LtdShenzhen518118China Faculty of Food Science Zhejiang Pharmaceutical CollegeNingboChina

Background:Our previous study demonstrated that a dietary intervention with skipjack tuna(Katsuwonus pelamis)elastin peptides alleviated adjuvant-induced arthritis(AIA)and affected the gut microbiota of AIA ***-ever,whether the faecal microbiota serves as a surrogate to reflect the dynamics of the gut microbiota has not been ***:Using 16 S rRNA sequencing technology,the present study investigated the microbiota in three seg-ments(stomach,colon and caecum)of mice to comprehensively define microbial dysregulation and regulation related to rheumatoid arthritis(RA).Results:The results showed that the composition and distribution of the microbiota in the stomach,colon and caecum were significantly different depending on their intrinsic environment and their functions,and the colon possessed the richest and most diverse microbiota *** gut microbiota of AIA mice showed ecological dysbiosis,and a dietary intervention with skipjack tuna elastin peptides improved this negative effect,partic-ularly the changes in the gastric microbiota,which were most obvious at RA onset and ***:The results not only indicate the spatial heterogeneity of the gut microbiota in terms of composition and distribution,but also indicate the potential of the application of elastin peptides for the alleviation of RA.

关键词： Mice with adjuvant-induced arthritis Skipjack tuna(Katsuwonus pelamis)elastin peptides Gastrointestinal tract Gut microbiota faecal microbiota

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