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首页> 外文会议>Annual International Meeting of the American Society of Agricultural and Biological Engineers >Effect of Bedding Material on Air Quality of Bedded Manure Packs in Livestock Facilities
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Effect of Bedding Material on Air Quality of Bedded Manure Packs in Livestock Facilities

机译：床上用品材料对畜禽粪便包装空气质量的影响

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Bedding materials may affect air quality in livestock facilities. The objective of this study was to compare headspace concentrations of odorous volatile organic compounds (VOCs), ammonia (NH3), carbon dioxide (C02),methane (CH4), and nitrous oxide (N20) when pine wood chips (PC) and corn stover (CS) were mixed in various ratios (0, 10, 20,30, 40, 60, 80, and 100% PC) and used as bedding in lab-scaled bedded manure packs. Odor activity values (OAV) were calculated using VOC concentration. Air sampleswere collected from the headspace of the lab-scaled bedded packs weekly for 6 weeks. Concentration of VOC was similar among all bedding treatments (P ^ 0.30), as were the OAV. Ammonia concentration increased linearly with increasing inclusion of PC in the bedding mix (P - 0.002; R2 -0.5819). Carbon dioxide, CH4, and N20 concentrations were similar among bedding materials (P > 0.61) and changed throughout the 6 week study (P < 0.01). Results of this study indicate that mixtures of bedding material containing > 60% PC may increase NH3, but VOC, greenhouse gas production, and odor potential as indicated by OAV will not be affected by the inclusion of PC when used in deep-bedded livestock facilities.
机译：床上用品可能会影响牲畜设施中的空气质量。本研究的目的是比较有气味的挥发性有机化合物（VOC），氨的顶空浓度（NH 3），二氧化碳（CO 2），甲烷（CH4），和一氧化二氮（N 2 O），当松木屑（PC）和玉米秸秆（CS）以各种比例混合（0，10，20,30，40，60，80，和100％的PC），并用作在实验室规模层状粪肥包床上用品。使用VOC浓度计算气味活性值（OAV）。每周从实验室缩放的包装包的顶部空间收集空气样品6周。所有床上用品处理中的VOC浓度相似（P ^ 0.30），也可以是OAV。随着床上用品混合物的增加，氨浓度随着PC的增加而被线性增加（P - 0.002; R2 -0.5819）。在床上用品（p> 0.61）中，二氧化碳，CH4和N20浓度相似，并在整个6周的研究中改变（P <0.01）。该研究的结果表明，含有> 60％PC的床上用品的混合物可能会增加NH3，但OAV所示的VOC，温室气体生产和气味潜力不会受到在深层牲畜设施中使用的PC的影响。

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