Estimation of enteric methane emissions trends (1990–2008) from Manitoba beef cattle using empirical and mechanistic models
نویسندگان
چکیده
منابع مشابه
Prediction of enteric methane emissions from cattle.
Agriculture has a key role in food production worldwide and it is a major component of the gross domestic product of several countries. Livestock production is essential for the generation of high quality protein foods and the delivery of foods in regions where animal products are the main food source. Environmental impacts of livestock production have been examined for decades, but recently em...
متن کاملThe potential of 3-nitrooxypropanol to lower enteric methane emissions from beef cattle.
This study evaluated if 3-nitrooxypropanol reduces enteric methane (CH4) emissions when added to the diet of beef cattle. The effects of 3-nitrooxypropanol on related variables including diet digestibility, ruminal fermentation, and ruminal microorganisms were also investigated. Eight ruminally cannulated Angus heifers (549 ± 64.3 kg [mean BW ± SD]) were fed a high forage diet (backgrounding di...
متن کاملEstimation of methane emissions from local and crossbreed beef cattle in Daklak province of Vietnam
OBJECTIVE This study was aimed at evaluating effects of cattle breed resources and alternative mixed-feeding practices on meat productivity and emission intensities from household farming systems (HFS) in Daklak Province, Vietnam. METHODS Records from Local Yellow×Red Sindhi (Bos indicus; Lai Sind) and 1/2 Limousin, 1/2 Drought Master, and 1/2 Red Angus cattle during the growth (0 to 21 month...
متن کاملMethane emissions from cattle.
Increasing atmospheric concentrations of methane have led scientists to examine its sources of origin. Ruminant livestock can produce 250 to 500 L of methane per day. This level of production results in estimates of the contribution by cattle to global warming that may occur in the next 50 to 100 yr to be a little less than 2%. Many factors influence methane emissions from cattle and include th...
متن کاملEffect of dried distillers grains plus solubles on enteric methane emissions and nitrogen excretion from growing beef cattle.
The objectives of this study were to examine the impact of corn- or wheat-based dried distillers grains with solubles (CDDGS or WDDGS) on enteric methane (CH4) emissions from growing beef cattle and determine if the oil in CDDGS was responsible for any response observed. Effects of CDDGS or WDDGS on total N excretion and partitioning between urine and fecal N were also examined in this replicat...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 2011
ISSN: 0008-3984,1918-1825
DOI: 10.4141/cjas2010-009