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The Use of an Automated System GreenFeed to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals
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Control of rumen methanogenesis.

C J Van Nevel1, D I Demeyer

  • 1Department of Animal Production, University of Ghent, 9090, Melle, Belgium.

Environmental Monitoring and Assessment
|November 7, 2013
PubMed
Summary
This summary is machine-generated.

Reducing methane production in ruminants is key for feed efficiency and climate change mitigation. However, inhibiting rumen methanogenesis faces challenges like microbial adaptation and potential negative impacts on animal health and digestion.

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Area of Science:

  • Ruminant nutrition and metabolism
  • Environmental science and global change
  • Microbial ecology

Background:

  • Methane (CH4) production in ruminant digestion represents a significant energy loss (2-15%) and contributes to global warming.
  • Research on inhibiting methanogenesis aims to improve feed efficiency and reduce environmental impact.

Purpose of the Study:

  • To review various strategies for reducing methane emissions from ruminants.
  • To assess the effectiveness and limitations of different methane inhibition techniques.

Main Methods:

  • Dietary manipulations, including ration composition and feeding levels.
  • Use of feed additives such as polyhalogenated compounds, ionophores, antibiotics, and lipids.
  • Biotechnological approaches including defaunation, probiotics, and reductive acetogenesis.

Main Results:

  • Dietary strategies and additives can lower ruminal methanogenesis.
  • However, complete and sustained inhibition is often not achieved due to microbial adaptation or additive degradation.
  • Some interventions may have adverse effects on animal health, digestion, and productivity.

Conclusions:

  • Methane inhibition in ruminants is complex and requires a holistic approach.
  • Interventions must consider potential trade-offs with animal performance and overall rumen function.
  • Methanogenesis and its inhibition are integral parts of rumen fermentation with broader consequences for the animal.