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| Greenhouse Gas Emissions from Tibetan Sheep with Supplementary Feeding in Alpine Pasture in Qinghai-Tibet Plateau During Cold Seasons |
| Received:March 17, 2014 |
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| KeyWord:Tibetan sheep;greenhouse gases;methane;carbon dioxide;nitrous oxide;diurnal emission pattern |
| Author Name | Affiliation | E-mail | | XU Tian-wei | Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
University of Chinese Academy of Sciences, Beijing 100049, China | | | HU Lin-yong | Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
Key Laboratory of Adaptation and Evolution of Plateau Biota, Chinese Academy of Sciences, Xining 810001, China | | | GE Shi-dong | Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
University of Chinese Academy of Sciences, Beijing 100049, China | | | ZOU Xiao-yan | Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
Key Laboratory of Adaptation and Evolution of Plateau Biota, Chinese Academy of Sciences, Xining 810001, China | | | ZHAO Na | Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
Key Laboratory of Adaptation and Evolution of Plateau Biota, Chinese Academy of Sciences, Xining 810001, China | | | XU Shi-xiao | Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
Key Laboratory of Adaptation and Evolution of Plateau Biota, Chinese Academy of Sciences, Xining 810001, China | sxxu@nwipb.cas.cn |
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| Abstract: |
| Greenhouse gas emissions from raising ruminants contribute to the global greenhouse gas production. This study presented results on greenhouse gas (including CH4, CO2, and N2O) emissions from Tibetan sheep with supplementary feeding in Qinghai-Tibet Plateau. A combination of respiration chamber and GC methods was used to examine the diurnal patterns of greenhouses gas emissions in 3 Tibetan sheep[Average body weight(BW)=(50.13±1.28)kg] during cold season in 2013. The animals were fed with steamed concentrate diets and dry grass biscuits. The chamber was applied right prior to the measurements. Methane emission curve was characterized with apparent diurnal pattern, with emission peaks occurred at 8:00 am and 17:00 pm and the lowest emission rate appeared at 7:00 am. The rates of CO2 emissions remained relatively stable through a day. However, N2O emissions were quite low. The daily emissions of CH4, CO2 and N2O from Tibetan sheep were(16.17±1.27), (549.18±20.63)g·head-1 and (0.73±0.32)mg·head-1, respectively. |
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