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Melatonin disturbed rumen microflora structure and metabolic pathways in vitro
Chun Xue1,2, Yifan Wang1, Zhaoyuan He3
1College of Animal Science and Technology, Yangzhou University , Yangzhou, China.
Microbiology Spectrum
|November 6, 2023
Summary
Melatonin (MLT) alters rumen microbial communities, reducing harmful bacteria and boosting beneficial ones. It may also regulate key metabolic pathways involving amino acids like tryptophan.
Area of Science:
- Rumen microbiology
- Metabolomics
- Animal nutrition
Background:
- The rumen microbiome influences animal health and productivity.
- Understanding microbial shifts and metabolic regulation is crucial for livestock.
- Melatonin's role in the rumen is not fully elucidated.
Purpose of the Study:
- To investigate the effects of melatonin (MLT) on rumen microorganisms and metabolites.
- To determine MLT's impact on rumen flora structure and bacterial abundance.
- To explore potential metabolic pathways regulated by MLT in the rumen.
Main Methods:
- In vitro incubation of rumen microorganisms.
- Analysis of microbial community structure (e.g., relative abundance of bacteria).
- Metabolomic analysis to identify affected pathways.
Main Results:
- MLT significantly altered rumen flora structure.
- MLT inhibited the relative abundance of harmful Acinetobacter.
- MLT improved the relative abundance of beneficial bacteria.
- MLT may regulate pathways including arginine-glutathione, tryptophan biosynthesis, and tryptophan metabolism.
Conclusions:
- Melatonin modulates rumen microbial composition, favoring beneficial bacteria.
- MLT exhibits antimicrobial properties against specific harmful bacteria in the rumen.
- Potential regulation of key amino acid metabolic pathways by MLT warrants further investigation.
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