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Updated: Jan 21, 2026
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Microbial Communities in Nature and Laboratory - Interview
Published on: May 28, 2007
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Rumen fermentation and microbial community composition influenced by live Enterococcus faecium supplementation.
Lovelia L Mamuad1, Seon Ho Kim1, Ashraf A Biswas1
1Department of Animal Science and Technology, Sunchon National University, Jeonnam, South Korea.
AMB Express
|August 1, 2019
Summary
Supplementing Enterococcus faecium SROD in ruminant diets improved volatile fatty acid production and reduced methane emissions. This probiotic also altered rumen microbial populations, enhancing animal health and productivity.
Area of Science:
- Rumen microbiology
- Animal nutrition
- Environmental science
Background:
- Probiotics can enhance ruminant health and productivity.
- Probiotics can mitigate methane production from ruminants.
- Enterococcus faecium SROD is a potential probiotic for ruminants.
Purpose of the Study:
- To investigate the effects of Enterococcus faecium SROD on in vitro rumen fermentation.
- To determine the impact of E. faecium SROD on methane concentration.
- To analyze the changes in rumen microbial population structure due to E. faecium SROD.
Main Methods:
- In vitro rumen fermentation system using Holstein-Friesian cattle ruminal samples.
- Substrate: 40:60 rice straw to concentrate ratio.
- E. faecium SROD supplementation at 0, 0.1%, 0.5%, and 1.0% inclusion rates.
Main Results:
- 0.1% E. faecium SROD supplementation maximized propionate and total volatile fatty acids (VFAs) and minimized methane concentration.
- Significant increase in total bacteria and Ruminococcus flavefaciens at 0.1% E. faecium SROD.
- Increased total fungi and Fibrobacter succinogenes at 1.0% E. faecium SROD.
Conclusions:
- Supplementation of 0.1% Enterococcus faecium SROD is optimal for improving rumen fermentation and reducing methane emissions.
- E. faecium SROD modulates rumen microbial community structure, including bacteria and fungi.
- This probiotic shows potential for enhancing ruminant health and environmental sustainability.
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