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Methanogenesis is a critical microbial process in anaerobic ecosystems responsible for the biological production of methane, a potent greenhouse gas and valuable biofuel. This metabolic pathway is primarily facilitated by methanogenic archaea, which thrive in anoxic environments such as wetlands, sediments, and animal gastrointestinal tracts. The absence of oxygen in these habitats prevents aerobic respiration, thereby favoring alternative biochemical pathways for organic matter degradation.In...
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Related Experiment Video

Updated: May 10, 2026

The Use of an Automated System (GreenFeed) to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals
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Published on: September 7, 2015

Manure management for greenhouse gas mitigation.

S O Petersen1, M Blanchard, D Chadwick

  • 1Department Agroecology, Aarhus University, Blichers Allé 20, 8830 Tjele, Denmark. soren.o.petersen@agrsci.dk

Animal : an International Journal of Animal Bioscience
|June 7, 2013
PubMed
Summary

Livestock manure management is a significant source of greenhouse gases (GHGs) like methane and nitrous oxide. Implementing effective manure management strategies can reduce these emissions without compromising food production.

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Lab-Scale Model to Evaluate Odor and Gas Concentrations Emitted by Deep Bedded Pack Manure

Published on: July 19, 2018

Area of Science:

  • Agricultural Science
  • Environmental Science
  • Microbiology

Background:

  • Intensified livestock production generates large manure volumes, a primary source of methane (CH4) and nitrous oxide (N2O) emissions.
  • Microbial activities within manure dictate net GHG emissions, influenced by manure composition, management practices, and climate.
  • Global livestock systems vary in intensification and regulatory priorities, impacting manure management strategies.

Purpose of the Study:

  • To analyze greenhouse gas (GHG) mitigation options for diverse livestock production systems.
  • To explore interactions between pollutants and management practices for effective GHG reduction.
  • To discuss the necessity and requirements for a modeling approach to estimate GHG emissions and predict mitigation effects.

Main Methods:

  • Comparative analysis of manure management across four diverse global regions (Sub-Saharan Africa, Southeast Asia, China, Europe).
  • Identification and discussion of GHG mitigation strategies for both solid and liquid manure.
  • Exploration of potential synergistic and antagonistic interactions between different pollutants and management practices.

Main Results:

  • Livestock manure is a major source of methane and nitrous oxide, with emissions dependent on manure characteristics, management, and climate.
  • Regional case studies reveal diverse manure management practices and regulatory priorities.
  • GHG mitigation potentials are highest in intensive production systems, where future livestock growth is projected.

Conclusions:

  • Effective manure management is crucial for reducing greenhouse gas emissions from livestock production.
  • A modeling approach is necessary to accurately estimate GHG emissions and predict the impact of management changes.
  • Reducing GHG emissions from manure is compatible with improving food and feed production, particularly in intensive systems.