Methane emission and its mitigation


Practical strategies to reduce agricultural greenhouse gas emissions are urgently sought, particularly for enteric methane. The most successful strategies will be those, which lead to a profitable increase in animal productivity, as well as reduce enteric methane emission. Enteric methane emissions and its mitigation are directly related with hydrogen utilization, suppression and diversion towards a productive process. Researchers are trying to explore the best possible options for the eradication of enteric methane through feeding, redirecting hydrogen towards productive process, and biological control of rumen archaea.


  • To study the effect of long term supplementation (rotational) of proven methane ameliorating agents on enteric methanogenesis and rumen microbial population
  • Developing and testing of slow release nitrate sources with/without sulfur combination to study their efficacy on rumen methane reduction
  • To study the underlying mechanism of association between protozoa and methanogens and designing biomolecules for facilitating the disassociation between these two
  • To compare the enteric methane emission among indigenous and crossbred cattle and buffaloes fed on similar feeding regimes. 


  • Ameliorative measures for the effective and persistent enteric methane reduction for long duration by rotational and intermittent feeding of proven/established sources and overcoming the issue of methanogen resistance to the supplementation
    • Comprehensive data on the effectiveness of ameliorative measures by comparing short and long term impact on methane emission
    • First-hand information on the persistency of mitigation effect after withdrawal of the supplementation of test sources        
  • Development of slow release nitrate source, their optimum dose of supplementation and methods for managing fermentative hydrogen effectively, without any adverse effect on the residing microbes and host animal
  • Biomolecules for blocking the adherence of rumen methanogens and protozoa to prevent interspecies hydrogen transfer and thereby reducing methane emission  
  • First-hand information on the variability in enteric methane emission among indigenous cattle and crossbred cattle and buffaloes when fed on the same dietary regimes.

Expected outcomes

  • Set of practices for the long-term methane amelioration using proven methane ameliorative agents
  • Slow release nitrate source for supplementation in cattle and buffalo for reducing methanogenesis
  • Bio-molecules for preventing the adherence of methanogens-protozoa