Eggshell and environmental bacteria contribute to the intestinal microbiota of growing chickens

Journal of Animal Science and Biotechnology
Joel J MakiTorey Looft

Abstract

The initial intestinal microbiota acquired from different sources has profound impacts on animal health and productivity. In modern poultry production practices, the source(s) of the establishing microbes and their overall contribution during development of gastrointestinal tract communities are still unclear. Using fertilized eggs from two independent sources, we assessed the impact of eggshell- and environmental-associated microbial communities on the successional processes and bacterial community structure throughout the intestinal tract of chickens for up to 6 weeks post-hatch. Culturing and sequencing techniques identified a viable, highly diverse population of anaerobic bacteria on the eggshell. The jejunal, ileal, and cecal microbial communities for the egg-only, environment-only, and conventionally raised birds generally displayed similar successional patterns characterized by increasing community richness and evenness over time, with strains of Enterococcus, Romboutsia, and unclassified Lachnospiraceae abundant for all three input groups in both trials. Bacterial community structures differed significantly based on trial and microbiota input with the exception of the egg-exposed and conventional birds in the jejunum at...Continue Reading

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Citations

Feb 13, 2021·Journal of Animal Science and Biotechnology·Jing LiuGuolong Zhang
Jun 6, 2020·Microbiology Resource Announcements·Joel J MakiTorey Looft
Aug 2, 2021·Animal Microbiome·Randi LundbergDorthe Sandvang
Jan 26, 2022·The Veterinary Quarterly·Gustaw M SzafraniecBeata Dolka

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Methods Mentioned

BETA
PCR
Phyloseq

Software Mentioned

R
dada2
Silva
Vegan
PERMDISP
PERMANOVA
Phyloseq
gplots

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