Time series of chicken stool metagenomics and egg metabolomics in changing production systems: preliminary insights from a proof-of-concept

Time series of chicken stool metagenomics and egg metabolomics in changing production systems: preliminary insights from a proof-of-concept

Different production systems of livestock animals influence various factors, including the gut microbiota. We investigated whether changing the conditions from barns to free-range chicken farming impacts the microbiome over the course of three weeks. We compared the stool microbiota of chicken from...

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Bibliographic Details
Published in:One health outlook Vol. 6; no. 1; p. 4
Main Authors: Rosch, Michael E G, Rehner, Jacqueline, Schmartz, Georges P, Manier, Sascha K, Becker, Uta, Müller, Rolf, Meyer, Markus R, Keller, Andreas, Becker, Sören L, Keller, Verena
Format: Journal Article
Language:English
Published: England BioMed Central 29-03-2024
BMC
Subjects:
Antibiotics
Bacteria
Chickens
Egg metabolomics
Eggs
Farm buildings
Feces
Food quality
Genomes
Intestinal microbiome
Livestock
Livestock animals
Mass spectrometry
Metabolites
Poultry
Poultry farming
Production systems
Scientific imaging
Taxonomy
Production systems
Intestinal microbiome
Poultry
Livestock animals
Egg metabolomics
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Summary:Different production systems of livestock animals influence various factors, including the gut microbiota. We investigated whether changing the conditions from barns to free-range chicken farming impacts the microbiome over the course of three weeks. We compared the stool microbiota of chicken from industrial barns after introducing them either in community or separately to a free-range environment. Over the six time points, 12 taxa-mostly lactobacilli-changed significantly. As expected, the former barn chicken cohort carries more resistances to common antibiotics. These, however, remained positive over the observed period. At the end of the study, we collected eggs and compared metabolomic profiles of the egg white and yolk to profiles of eggs from commercial suppliers. Here, we observed significant differences between commercial and fresh collected eggs as well as differences between the former barn chicken and free-range chicken. Our data indicate that the gut microbiota can undergo alterations over time in response to changes in production systems. These changes subsequently exert an influence on the metabolites found in the eggs. The preliminary results of our proof-of-concept study motivate larger scale observations with more individual chicken and longer observation periods.
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ISSN:2524-4655
2524-4655
DOI:10.1186/s42522-024-00100-0