Gaseous emissions from weaned pigs raised on different floor systems
Gaseous emissions from weaned pigs raised on different floor systems
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DOI：
10.1016/j.agee.2008.11.016
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发表时间：
2009-04-01
影响因子：
6.6
通讯作者：
Nicks, Baudouin
中科院分区：
文献类型：
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作者：
Cabaraux, Jean-Francois;Philippe, Francois-Xavier;Nicks, Baudouin
农业排放的气体造成了一些环境影响。二氧化碳（CO（2））、甲烷（CH（4））和一氧化二氮（N（2）O）是引起全球气候变化的温室气体。氨（NH（3））的排放是土壤酸化和富营养化的原因，也有助于间接排放的N（2）O。本工作评估了断奶仔猪饲养中地板类型对这些气体排放的影响。进行了两次试验。在第一次试验中，动物被饲养在完全板条地板上或稻草基深垫料上，在第二次试验中，动物被饲养在完全板条地板上或木屑基深垫料上。对于每种试验和每种类型的地板，连续饲养2批断奶仔猪，在2批之间不更换窝仔或清空泥浆池。房间自动通风，以保持恒定的环境温度。动物的表现没有显着差异，根据地板类型。试验1秸秆深层凋落物（含基质）和稀浆含氮量分别为276和389 g猪（-1）。试验2中，锯末深垫料和泥浆氮含量分别为122和318 g猪（-1），稻草深垫料上饲养的猪比板条地板上饲养的猪多产约100%的NH3（0.61gNH3-Nd（-1）比0.31gNH3-Nd（-1）猪（-1）; P < 0.05）。系统之间CO（2）、H（2）O和CH（4）排放量的差异不显著。在锯末深垫料上养猪产生的NH（3）也比深垫料多（+52%; 0.55 g NH（3-）N d（-1）猪（-1）vs. 0.36 g NH（3）-N d（-1）猪（-1）; P < 0.01），但也有更多的CO（2）（+25%; 427 g d（-1）pig（-1）vs. 341 g d（-1）pig-1; P < 0.001）和H（2）O（+65%; 981 g d（-1）猪（-1）vs. 593 g d（-1）猪（-1）; P < 0.001）和CH（4）（-40%; 0.52 g d（-1）猪（-1）vs. 0.86 g d（-1）猪（-1; P < 0.001）。实际上没有观察到从房间与板条地板的N2 O排放，而N2 O排放量为0.03和0.32克N（2）O-N（-1）猪（-1）秸秆和锯末深凋落物分别。温室气体（N2 O + CH 4）的增温潜力分别为22、34和168 g CO2当量/日，全板条地板、稻草和锯末深垫料的猪只分别为34、34和168 g CO2当量/日，表明全板条塑料地板系统的断奶仔猪饲养污染气体排放量低于深垫料系统。(c)2008 Elsevier B. V.保留所有权利。
Gaseous emissions from agriculture contribute to a number of environmental effects. Carbon dioxide (CO(2)), methane (CH(4)) and nitrous oxide (N(2)O) are greenhouse gases taking part to the global problem of climate change. Ammonia (NH(3)) emissions are responsible of soil acidification and eutrophication and contribute also to indirect emissions of N(2)O. This work evaluated the influence of the type of floor on the emissions of these gases in the raising of weaned pigs. Two trials were carried out. In the first trial, the animals were kept either on fully slatted floor or on straw-based deep litter and, in the second one, either on fully slatted floor or on sawdust-based deep litter. For each trial and on each type of floor, 2 successive batches of weaned pigs were raised without changing the litter or emptying the slurry pit between the 2 batches. The rooms were automatically ventilated to maintain a constant ambient temperature.The performance of the animals was not significantly different according to the floor type. In trial 1, the nitrogen contents of the straw deep litter (including the substrate) and slurry were respectively 276 and 389 g pig(-1). In trial 2, the sawdust deep litter and slurry nitrogen contents were respectively 122 and 318 g pig(-1).Raising pigs on straw deep litter produced proportionately around 100% more NH(3) than raising pigs on slatted floor (0.61 g NH(3)-N d(-1) pig(-1) vs. 0.31 g NH(3)-N d(-1) pig(-1); P < 0.05). Differences in CO(2), H(2)O and CH(4) emissions were not significant between systems. Raising pigs on sawdust deep litter produced also proportionately more NH(3) (+52%; 0.55 g NH(3-)N d(-1) pig(-1) vs. 0.36 g NH(3)-N d(-1) pig(-1); P < 0.01) but also more CO(2) (+25%; 427 g d(-1) pig(-1) vs. 341 g d(-1) pig-1; P < 0.001) and H(2)O (+65%; 981 g d(-1) pig(-1) vs. 593 g d(-1) pig-1; P < 0.001) and less CH(4) (-40%; 0.52 g d(-1) pig(-)1 vs. 0.86 g d(-1) pig(-1); P < 0.001) than raising pigs on slatted floor. Practically no N(2)O emission was observed from rooms with slatted floor while the N2O emissions were 0.03 and 0.32 g N(2)O-N d(-1) pig(-1) for the straw and sawdust deep litter respectively. The warming potential of the greenhouse gases (N(2)O + CH(4)), were about 22, 34 and 168 g CO(2) equivalents per day and per pig on fully slatted floor, straw or sawdust deep litter respectively.In conclusion, pollutant gas emissions from rearing of weaned pig seem lower with fully slatted plastic floor system than with deep litter systems. (c) 2008 Elsevier B.V. All rights reserved.