Reduction in Greenhouse Gas Emissions Associated with Worm Control in Lambs
Reduction in Greenhouse Gas Emissions Associated with Worm Control in Lambs
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DOI：
10.3390/agriculture3020271
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发表时间：
2013-06-01
影响因子：
3.6
通讯作者：
Skuce, Philip J.
中科院分区：
文献类型：
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作者：
Kenyon, Fiona;Dick, Jan M.;Skuce, Philip J.
目前关于地方病控制在减少牲畜温室气体 (GHG) 排放方面的作用的数据很少或根本没有。在本研究中，我们使用符合政府间气候变化专门委员会 (IPCC) 标准的模型来计算在 5 年的研究期间，在四种不同的驱虫药物治疗方案下自然放牧的羔羊的温室气体排放量。治疗可以是“每月”（NST）、“策略”（SPT）、“有针对性”（TST）或基于“临床体征”（MT）。模拟了商业绵羊养殖实践，羔羊达到预先选定的目标市场体重（38公斤），从分析中删除，因为它们将不再为羊群的温室气体预算做出贡献。结果显示，多年来的治疗效果均显着，MT 组的羔羊始终需要更长的时间才能达到上市体重，并且与其他治疗组相比，每增加一公斤体重，CO(2)e 排放量额外增加 10%。其他三种处理策略（NST、SPT 和 TST）在实验期间的生产效率或累积温室气体排放量方面没有显着差异。这项研究表明，地方病控制有助于减少畜牧业的温室气体排放，并有助于减少畜牧业的碳足迹。
There are currently little or no data on the role of endemic disease control in reducing greenhouse gas (GHG) emissions from livestock. In the present study, we have used an Intergovernmental Panel on Climate Change (IPCC)-compliant model to calculate GHG emissions from naturally grazing lambs under four different anthelmintic drug treatment regimes over a 5-year study period. Treatments were either "monthly" (NST), "strategic" (SPT), "targeted" (TST) or based on "clinical signs" (MT). Commercial sheep farming practices were simulated, with lambs reaching a pre-selected target market weight (38 kg) removed from the analysis as they would no longer contribute to the GHG budget of the flock. Results showed there was a significant treatment effect over all years, with lambs in the MT group consistently taking longer to reach market weight, and an extra 10% emission of CO(2)e per kg of weight gain over the other treatments. There were no significant differences between the other three treatment strategies (NST, SPT and TST) in terms of production efficiency or cumulated GHG emissions over the experimental period. This study has shown that endemic disease control can contribute to a reduction in GHG emissions from animal agriculture and help reduce the carbon footprint of livestock farming.