| 舍饲生长期牦牛NH3排放及其对CH4与CO2 |
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| 引用本文： | 刘慧丽,郝力壮,刘书杰,柴沙驼,张晓卫.舍饲生长期牦牛NH3排放及其对CH4与CO2[J].贵州农业科学,2017,45(9). |
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| 作者姓名： | 刘慧丽 郝力壮 刘书杰 柴沙驼 张晓卫 |
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| 作者单位： | 省部共建三江源生态与高原农牧业国家重点实验室,青海省高原放牧家畜动物营养与饲料科学重点实验室,青海高原牦牛研究中心,青海大学 畜牧兽医科学院,青海 西宁 810016 |
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| 基金项目： | 国家重点研发计划项目"畜禽群体与环境互作机制研究"，国家自然科学基金项目"不同物理形式双低菜籽油对牦牛甲烷排放的影响及其机制研究"，国家重点基础研究发展计划(973项目)"青海高原放牧牦牛乳肉营养调控与加工的基础研究"，青海省重大科技平台建设项目"青海省高原放牧家畜营养与生态重点实验室"，国家科技支撑计划项目"青海高寒草甸草原牧区'生产生态生活'保障提升技术集成与示范"，公益性行业(农业)科研专项"典型类型草场四季牧草种类构成及变化规律的研究与牧草营养价值数据库的建立"，国家国际科技合作专项"中国新西兰高原草地营养流及可持续生产研究" |
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| 摘 要： | 为舍饲育肥牦牛高效生态生产、减少有害气体和温室气体排放提供参考,采用大型呼吸测热环控舱(Chamber)模拟舍饲状态,对4头生长期育肥牦牛排放的主要温室气体甲烷(CH4)和二氧化碳(CO2)及有害气体氨气(NH3)进行动态监测.结果表明:牦牛在采食1.5~3 h后CH4排放量达最大值,维持一段时间后,排放量逐渐下降;CO2排放相对平稳;NH3排放无明显规律.CH4、CO2和NH3日平均排放量分别为22.42 g/头、1 023.10 g/头和5.84 g/头,舍内NH3浓度为157.29 mg/m3,超出牦牛耐受氨气浓度.NH3排放不影响CH4和CO2排放规律,但是影响气体总排放量.
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| 关 键 词： | 呼吸测热环控舱 氨气 甲烷 牦牛 |
Effects of Ammonia Emissions from Growing Yak under Barn Feeding Conditions on CH4 and CO2 |
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| LIU Huili,HAO Lizhuang,LIU Shujie,CHAI Shatuo,ZHANG Xiaowei.Effects of Ammonia Emissions from Growing Yak under Barn Feeding Conditions on CH4 and CO2[J].Guizhou Agricultural Sciences,2017,45(9). |
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| Authors: | LIU Huili HAO Lizhuang LIU Shujie CHAI Shatuo ZHANG Xiaowei |
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| Abstract: | To provide a reference for high efficient ecological production and reduce harmful gas and greenhouse gas emission of fatten yak under barn feeding conditions, the authors used a large chamber to simulate barn feeding conditions, so as to dynamically monitor mainly greenhouse gas(CH4 and CO2)and harmful gas (NH3) emissions from four growing yak.Results: CH4 emission reached the maximum 1.5~3 hours after intake, then it gradually declined after go on for some time.CO2 emission was relatively steady.NH3 emission showed no obvious rule.The daily emissions of CH4, CO2 and NH3 from yak were 22.42 g/individual, 1 023.10 g/individual and 5.84 g/individual, respectively.NH3 emission concentration was 157.29 mg/m3.NH3 emission does not influence CH4 and CO2 emissions but influence total emissions. |
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| Keywords: | chamber ammonia methane yak |
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