Feeding regimens reshape rumen microbiota and metabolome in Shorthorn cattle: a multi-omic insight into microbial diversity and metabolic pathway dynamics
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View abstract on PubMed
Summary
This summary is machine-generated.Intensive feeding alters Shorthorn cattle rumen microbiota and metabolites, impacting growth. Natural grazing promotes higher microbial diversity, while intensive systems shift specific bacterial genera and metabolites, warranting further investigation.
Area Of Science
- Ruminant microbiome research
- Animal nutrition and metabolism
- Multi-omics analysis in livestock
Background
- The rumen microbiome is crucial for ruminant health and nutrition.
- Feeding regimens significantly influence the rumen environment.
- Understanding these shifts is key to optimizing cattle production.
Purpose Of The Study
- To investigate how natural grazing versus intensive feeding affects the rumen microbiota and metabolites in Shorthorn cattle.
- To compare the microbial diversity, community composition, and metabolic profiles between different feeding groups.
- To explore the correlations between rumen microbes and metabolites.
Main Methods
- Multi-omics analysis including 16S rRNA sequencing and LC-MS.
- Comparative study of three feeding groups: natural grazing (DJCF), intensive feeding bulls (DJCY), and intensive feeding steers (DJC).
- Analysis of rumen fluid collected after a 361-day fattening trial.
Main Results
- Intensive feeding altered rumen microbial diversity and composition compared to natural grazing.
- Bacteroidetes and Firmicutes were dominant phyla; Prevotella genus was significantly higher in intensive feeding.
- Significant differences in rumen metabolites were observed, with correlations found between microbial and metabolic profiles.
Conclusions
- Intensive feeding systems modify the rumen microbiome and metabolites, potentially improving Shorthorn cattle growth.
- Natural grazing supports higher microbial diversity.
- Further research is needed to elucidate the precise mechanisms linking rumen microbiota, metabolites, and cattle performance.
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