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首页> 外文期刊>Agriculture, Ecosystems & Environment: An International Journal for Scientific Research on the Relationship of Agriculture and Food Production to the Biosphere >Organic matter and nitrogen balance in rabbit fattening and gaseous emissions during manure storage and simulated land application
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Organic matter and nitrogen balance in rabbit fattening and gaseous emissions during manure storage and simulated land application

机译：肥料储存过程中兔育肥和气态排放中的有机物和氮气平衡

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摘要

Expansion in global rabbit populations and in the number of rabbits raised for consumption necessitates assessment of the environmental impact and sustainability of rabbit production systems. This study undertook two evaluations: utilization (animal efficiency) of organic matter (OM) and nitrogen (N) produced from feed during rabbit fattening, and emission of ammonia (NH3), carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) from rabbit manure during its storage and land application in laboratory-simulated conditions. Results demonstrated manure contained approximately 30 and 65% of the OM and N in the daily feed intake, respectively. Additionally, rabbit manure was shown to produce sizeable NH3and GHG emissions. Specifically, cumulative N losses from storage and subsequent land application averaged 32.4 (NH3) and 2.2% (N2O) of excreted TN; cumulative proportions of OM lost as CO2and CH4averaged 51.3 and 0.4%, respectively. Finally, while manure incorporation into the soil effectively abated NH3emissions, it also showed its potential to increase N2O losses, a potent greenhouse gas (GHG). Future research should focus on identifying appropriate emission mitigation measures. Accurate field-scale measurements are also needed to make data available for the development of a reliable national emission inventory of the investigated gases.
机译：全球兔人群的扩张和为消费提出的兔子数量需要评估兔生产系统的环境影响和可持续性。本研究进行了两种评价：从兔效率期间的饲料中产生的有机物质（OM）和氮气（N）的利用（动物效率），以及氨（NH 3），二氧化碳（CO 2），甲烷（CH 4）和氧化氮的发射（N2O）在储存期间的兔粪和土地应用在实验室模拟条件下。结果分别显示粪肥分别在每日进料摄入量的约30和65％的OM和N.此外，显示兔粪便产生尺寸的NH3和温室气体排放。具体地，储存的累积N损耗和随后的土地应用的平均为32.4（NH3）和2.2％（N20）的排泄TN;综合反弹作为CO2和CH4Averaged 51.3和0.4％丢失。最后，虽然粪肥掺入土壤中有效减少NH3Emissions，但它还表明它有可能增加N2O损失，有效的温室气体（GHG）。未来的研究应该侧重于确定适当的排放缓解措施。还需要准确的现场尺度测量来使数据可用于开发调查的气体的可靠国家排放库存。

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