Dr. P. R. PANDYAHARSHALA A. THUBE2017-08-032017-08-032008http://krishikosh.egranth.ac.in/handle/1/5810027297Methane (CH4) eructated from ruminants represents a loss of 8 to 13% of the digestible energy ingested by the animal and contributes to global warming. Decreasing methane emissions from ruminant livestock is desirable in order to both, reduce greenhouse gases in the atmosphere and improve energy capture during digestion. Nutritionists have been trying for a long time to mitigate rumen methane emissions in order to enhance animal performance. The methods most commonly attempted involve elimination of ciliate protozoans which support methanogen populations, and addition of acetogenic bacteria to rumen fluid. The key steps for developing successful methane abatement strategies are likely to be steps which exploit natural processes in the rumen.enAnimal NutritionStudyThesis