Enteric methane emissions
A comparison of the economic value for enteric methane emissions with other biological traits associated with dairy cows
... of enteric methane produced by a ruminant ...low methane-emitting ruminant livestock, as methane is a potent greenhouse ...before enteric methane can be included in a genetic ...
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Modelling the effect of diet composition on enteric methane emissions across sheep, beef cattle and dairy cows
... Summary: Enteric methane emissions produced by ruminant livestock has gained global interest due to methane being a potent greenhouse gas and ruminants being a significant source of ...of ...
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Does the diurnal pattern of enteric methane emissions from dairy cows change over time?
... Table 2 Predicted mean1 production and methane CH4 emissions for groups of cows fed on high grass silage HG, high maize silage HM and commercial C partial mixed rations on consecutive fe[r] ...
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Can live weight be used as a proxy for enteric methane emissions from pasture-fed sheep
... Calculations and data analysis. One Texel ewe and one Welsh Mule ewe did not complete the measurements on one pasture type each, and their data were excluded from the study. Methane emissions data were ...
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Effect of feeding system on enteric methane emissions from individual dairy cows on commercial farms
... Acknowledgments: This work was funded by Defra, the Scottish Government, Department of Agriculture and Rural Development (DARD) in Northern Ireland, and the Welsh Government as part of the UK’s Agricultural GHG Research ...
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Effect of dietary crude protein and forage contents on enteric methane emissions and nitrogen excretion from dairy cows simultaneously
... The emissions data showed ...day. Methane flux rates (g/h) were fi rst aggregated within 4-h bin periods of a day (0000–0400 hours, 0400–0800 hours, 0800–1200 hours, 1200–1600 hours, 1600–2000 hours and ...
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Variation in enteric methane emissions among cows on commercial dairy farms
... cows after adjusting for effects of week of lactation, daily milk yield and farm at farms.. Figure 6 Mean CH4 emissions during milking for the same individual cows at farm I.[r] ...
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The safety and efficacy of nitrate N supplementation to Bos indicus cattle
... gas emissions, due to their enteric methane gas ...reduce methane production (Callaghan et ...reduce methane production from cattle and sheep (Leng, ...reduce enteric ...
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Novel monitoring systems to obtain dairy cattle phenotypes associated with sustainable production
... animal enteric methane emissions (Bell and Eckard, 2012), there has been considerable interest in phenotypic measurements of feed intake (Berry and Crowley, 2013; Pryce et ...and enteric ...
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Methane emissions and the use of Desmanthus in beef cattle production in Northern Australia
... concentrated diet and by 27% for the first four weeks for animals on high and low-concentrate diets, respectively. They also indicated that alternative feeding of cattle with monensin and lasalocid in comparison to only ...
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Reduction of Enteric Methane Emission in a Commercial Dairy Farm by a Novel Feed Supplement
... of methane emissions as a proxy for the efficiency of the rumen have been undertaken in previous studies through the use of respiration ...measure enteric methane emissions from the ...
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Influence of Al2o3 Additive on the Performance of a Diesel Engine Fueled with Jatropha Oil and Diesel Fuel
... materials and preparation technologies of biogas, other components include carbon monoxide, hydrogen, carbon dioxide, and nitrogen and hydrogen sulphide. Studies have shown that biogas can be prepared from various raw ...
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Emissions of Ammonia, Methane, Carbon Dioxide and Nitrous Oxide From Dairy Cattle Housing and Manure Management Systems
... 4 emissions from the manure stockpiles in the lots (due to the presence of the cattle) and previous studies have shown little CH 4 generation from fresh manure, we did not consider this as a separate source in our ...
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Estimation of nitrous oxide and methane emission from Polish agriculture
... produce methane primarily in manure (compare Fig. 2). In Fig. 2 the methane emission results (Gg) broken into animal species are ...unitary methane emission (Gg mln ha -1 ) broken into enteric ...
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A Cross-National Analysis of Agricultural Dependency and its Impacts on Environmental Degradation.
... 2011). Methane is the primary component of natural gas (making up over 90 percent), which has a number of commercial uses as a fuel source for heating, cooking, and electricity ...the methane it contains ...
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Methane and Nitrous Oxide Emissions from Agriculture on a Regional Scale
... gas emissions differ not only on a global, but also on a regional scale, and mitigation strategies are effective when they are adapted ...of methane (CH 4 ) and nitrous oxide (N 2 O) emissions ...
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Methane emissions from farmed red deer : a thesis in partial fulfilment of the requirements for the degree of Master of Science in Animal Science at Massey University, Palmerston North
... of methane measurements animals were dosed with alkane controlled release capsules ...the methane measurement period the disappearance of the remaining matrix of the capsule could be determined daily to ...
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Methane emissions from dairy lagoons in western U.S.
... emissions (kg/ha per day) using independent variables describing lagoon and meteorological characteristics: lagoon-specific conductivity (mS/cm), VS (mg/L), TS (mg/L), COD (mg/L), lagoon pH, wind speed (m/s), and ...
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Enteric methane output from selected herds of beef cattle raised under extensive arid rangelands
... aging to approximately 254 g/day/cow). High output could have emanated from the extreme dry conditions, which were prevailing in southern Africa during the 2015/16 rain season when this study was undertaken. This is ...
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Wildfire overrides hydrological controls on boreal peatland methane emissions
... changing climate (Flannigan et al., 2008). Fire can remove surface vegetation, increasing net radiation at the ground sur- face (Brown et al., 2015), and can “re-set” vegetation com- munities back to the primary ...
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