冬季猪舍内气载微生物、粉尘浓度日变化及新风系统对其的影响

doi:10.14088/j.cnki.issn0439-8114.2019.22.038

湖北农业科学 ›› 2019, Vol. 58 ›› Issue (22): 158-162.doi: 10.14088/j.cnki.issn0439-8114.2019.22.038

冬季猪舍内气载微生物、粉尘浓度日变化及新风系统对其的影响

黄藏宇¹, 徐子伟²

1.湖北省农业科学院畜牧兽医研究所/动物胚胎工程及分子育种湖北省重点实验室,武汉 430064;
2.浙江省农业科学院畜牧兽医研究所,杭州 310021

收稿日期:2019-01-09 出版日期:2019-11-25 发布日期:2019-12-09
作者简介:黄藏宇（1986-）,女,浙江海宁人,助理研究员,硕士,主要从事动物育种及健康养殖研究工作,（电话）13967317381（电子信箱）hcy63@sina.com。
基金资助:
国家重点研发计划项目（2017YFD0502001）; 国家生猪产业技术体系项目（CARS-35）; 湖北省农业科技创新中心创新团队项目（2016-620-000-001-022）; 湖北省农业科技创新行动项目（2018skjcx05）

Diurnal variation of airborne microorganism and dust concentration in winter piggery and effects of fresh air system on them

HUANG Cang-yu¹, XU Zi-wei²

1.Hubei Key Laboratory of Animal Embryo Engineering and Molecular Breeding/Institute of Animal Husbandry and Veterinary,Hubei Academy of Agricultural Sciences,Wuhan 430064,China;
2.Institute of Animal Husbandry and Veterinary,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China

Received:2019-01-09 Online:2019-11-25 Published:2019-12-09

摘要/Abstract

摘要： 为了解冬季猪舍空气中有害物质日变化情况,2011年2—3月,检测1 d内猪舍内气载有害物质浓度以及运行新风系统后短时间内其浓度变化,探究冬季封闭猪舍内空气中气载有害物质浓度的日变化规律以及新风系统对猪舍微环境的影响。结果表明,冬季猪舍内1 d内粉尘浓度高峰期出现在7：00~ 9：00,最小值出现在19：00。气载需氧菌数和气载大肠杆菌数都呈现早晚高、中午低的趋势。运行新风系统后短时间猪舍内气载需氧菌、气载大肠杆菌浓度变化并不明显,而粉尘含量逐渐降低,3 h降到最低值,0.3 m处PM1、PM2.5、RESP、PM10和TSP的浓度降幅为67.65%、67.31%、67.86%、71.43%和72.84%（P<0.05）,1.5 m处PM1、PM2.5、RESP、PM10和TSP的浓度降幅为60.87%、61.05%、61.90%、62.76%和60.90%（P<0.05）。新风系统在短时间内可有效降低封闭猪舍内粉尘浓度,但对气载微生物在短时间内降低效果不明显。

关键词: 猪舍, 气载微生物, 粉尘, 日变化, 新风系统, 冬季

Abstract: In order to understand the changes of harmful substances in the air of the piggery in one day in winter, the airborne airborne air in the ordinary closed piggery was explored by detecting the concentration of harmful substances in the piggery in the winter day and the concentration change in the short time after running the fresh air system. The daily variation of the concentration of harmful substances and the impact of the fresh air system on the micro-environment of the piggery. The results showed that the peak concentration of dust within one day in the closed piggery appeared between 7：00 and 9：00, and the minimum appeared at 19：00. The number of airborne aerobic bacteria and the number of airborne E. coli showed a trend of high early and late, low at noon. After running the fresh air system, the concentration of airborne aerobic bacteria and airborne E. coli in the piggery was not obvious, but the dust content gradually decreased, and reached the lowest value at 3 h. The concentration of PM1, PM2.5, RESP, PM10, and TSP at 0.3 m decreased by 67.65%,67.31%,67.86%,71.43% and 72.84% （P<0.05）. The concentration of PM1,PM2.5,RESP,PM10 and TSP at 1.5 m decreased by 60.87%, 61.05%,61.90%,62.76% and 60.90%（P<0.05）. The fresh air system can effectively reduce the dust concentration in the closed piggery in a short time, but the effect of reducing the airborne microorganisms in a short time was not obvious.

Key words: piggery, airborne microorganism, daily change, fresh air system, winter

中图分类号:

S828

黄藏宇, 徐子伟. 冬季猪舍内气载微生物、粉尘浓度日变化及新风系统对其的影响[J]. 湖北农业科学, 2019, 58(22): 158-162.

HUANG Cang-yu, XU Zi-wei. Diurnal variation of airborne microorganism and dust concentration in winter piggery and effects of fresh air system on them[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(22): 158-162.

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冬季猪舍内气载微生物、粉尘浓度日变化及新风系统对其的影响

Diurnal variation of airborne microorganism and dust concentration in winter piggery and effects of fresh air system on them

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