Phylogenetic and functional alterations in bacterial community compositions in broiler ceca as a result of mannan oligosaccharide supplementation

Applied and Environmental Microbiology
A CorriganR A Murphy

Abstract

This study focused on identifying reproducible effects of dietary supplementation with a mannan oligosaccharide (MOS) on the broiler cecal bacterial community structure and function in a commercial production setting. Two separate trials, each with a control and a supplemented group, were carried out in the same commercial location and run concurrently. Approximately 10,000 birds from the same commercial hatchery were mirror imaged into each of four commercial broiler sheds and fed either a control or supplemented diet. Cecal contents were obtained on days 7, 21, and 35 posthatch from 12 randomly caught broilers from each group. Bacterial pyrosequencing was performed on all samples, with approximately 250,000 sequences obtained per treatment per time point. The predominant phyla identified at all three time points in both trials were Firmicutes, Bacteroidetes, Proteobacteria, Actinobacteria, and Tenericutes, representing >99% of all sequences. MOS supplementation altered the bacterial community composition from 7 days supplementation through 35 days supplementation. Bacteroidetes appeared to be replacing Firmicutes as a result of supplementation, with the most noticeable effects after 35 days. The effects of supplementation wer...Continue Reading

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Jul 26, 2015·FEMS Microbiology Letters·Mohsen Pourabedin, Xin Zhao
Mar 6, 2018·Frontiers in Microbiology·Jannigje G KersHauke Smidt
Nov 15, 2018·Frontiers in Veterinary Science·Po-Yun Teng, Woo Kyun Kim
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Aug 17, 2020·Animals : an Open Access Journal From MDPI·Yasir IqbalFrank R Dunshea

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