Abstract
The present study was conducted to evaluate the effect of dietary monensin supplementation on methane and nitrous oxide emissions from fresh dung of non pregnant non lactating dry buffaloes. Fourteen dry Murrah buffaloes were randomly divided into two groups of seven animals each based on body weight. Both groups were fed as per ICAR without and with monensin supplementation (350 mg/head/day) in control and treatment group, respectively for sixty days. The daily dry matter intake (kg/d) was similar (P>0.05) in both the groups. Methane emission (g/kg DM, g/kg OM and g/kg NDF) from anaerobic incubation of fresh dung (24 h at 39°C) was decreased in treatment group 0.36, 0.45, 0.58 as compared to control 0.45, 0.56, 0.73, but difference was not significant. N 2 O production (mg/kg DM, mg/kg OM and mg/kg N) from fresh dung were lower for treatment group 0.02, 0.11 and 4.99 than control 0.016, 0.13 and 5.56 but difference was not statistically significant. In conclusion, dietary monensin supplementation to non pregnant dry Murrah buffaloes decreased (P>0.05) methane and nitrous oxide emission from fresh dung which will reduce the contribution of buffaloes to nitrous oxide emissions and its negative impact on environment.
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