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Diet shapes the gut microbiome of pigs during nursing and weaning

Open access
Frese, Steven A., Parker, Kent, Calvert, C. Chris, Mills, David A.·2015·Microbiome

Abstract

BACKGROUND: The newborn mammal is rapidly colonized by a complex microbial community, whose importance for host health is becoming increasingly clear. Understanding the forces that shape the early community, especially during the nursing period, is critical to gain insight into how this consortium of microbes is assembled. Pigs present an attractive model for nursing humans, given physiological and compositional similarity of pig and human milk and the utility of pigs in experimental studies. However, there is a paucity of data examining the gut microbiome in nursing pigs from birth through weaning using modern molecular methods and fewer experimental studies that examine the impact of diet on these microbial communities. RESULTS: We characterized the fecal microbiome of pigs from birth through 7 weeks of age, during which the animals were transitioned from an exclusive diet of sow milk to a starter diet composed of plant and animal-based components. Microbial communities were clearly distinguishable based on diet, being relatively stable absent dietary changes. Metagenomic sequencing was used to characterize a subset of animals before and after weaning, which identified glycan degradation pathways differing significantly between diets. Predicted enzymes active on milk-derived glycans that are otherwise indigestible to the host animal were enriched in the microbial metagenome of milk-fed animals. In contrast, the bacterial metagenome of weaned animals was enriched in functional pathways involved in plant glycan deconstruction and consumption. CONCLUSIONS: The gut microbiome in young pigs is dramatically shaped by the composition of dietary glycans, reflected by the different functional capacities of the microbiome before and after weaning.

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Metadata

Authors
Frese, S. A., Parker, K., Calvert, C. C., & Mills, D. A.
Venue
Microbiome
Published
2015-07-01
Volume
3
Issue
1
Pages
28-28
ISSN
2049-2618 (ISSN-L)
OpenAlex
W1926318014
Cited by
514
References
16
FWCI
10.55
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Diet shapes the gut microbiome of pigs during nursing and weaning. https://app.cochat.ai/papers/10.1186/s40168-015-0091-8
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Frese, S. A., Parker, K., Calvert, C. C., & Mills, D. A. (2015). Diet shapes the gut microbiome of pigs during nursing and weaning. Microbiome. https://doi.org/10.1186/s40168-015-0091-8

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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