山西省东南部羊舍气载真菌浓度变化及空气动力学特征

doi:10.16431/j.cnki.1671-7236.2018.07.038

《中国畜牧兽医》 ›› 2018, Vol. 45 ›› Issue (7): 2034-2040.doi: 10.16431/j.cnki.1671-7236.2018.07.038

• 环境安全 • 上一篇

山西省东南部羊舍气载真菌浓度变化及空气动力学特征

李治国¹, 于欢¹, 张鑫泽¹, 杜叶叶¹, 张红敏¹, 曹棋棋¹, 郭耀¹, 乔婷婷¹, 霍乃蕊¹, 刘兴国², 古少鹏¹

1. 山西农业大学动物科技学院, 太谷 030801;
2. 中国动物疫病预防控制中心, 北京 100125

收稿日期:2018-01-11 出版日期:2018-07-20 发布日期:2018-07-20
通讯作者: 古少鹏 E-mail:shpgu@163.com
作者简介:李治国(1994-),男,山西朔州人,学士,研究方向:兽医公共卫生,E-mail:17835425152@163.com
基金资助:
国家自然科学基金（31201437）；中国动物疫病预防控制中心横向课题（2013HX45）；山西省高等学校大学生创新创业训练计划项目（2016087）

Concentration Variation and Aerodynamic Characteristics of Airborne Fungi in Sheep Houses in Southeastern Shanxi Province

LI Zhiguo¹, YU Huan¹, ZHANG Xinze¹, DU Yeye¹, ZHANG Hongmin¹, CAO Qiqi¹, GUO Yao¹, QIAO Tingting¹, HUO Nairui¹, LIU Xingguo², GU Shaopeng¹

1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China;
2. China Animal Disease Control Center, Beijing 100125, China

Received:2018-01-11 Online:2018-07-20 Published:2018-07-20

摘要/Abstract

摘要：

试验研究了山西省东南部羊舍气载真菌浓度变化规律和真菌气溶胶的空气动力学特征，以期为羊场的环境控制提供依据。应用Andersen-6级空气微生物采样器，以孟加拉红培养基为采样介质，于春、夏、秋、冬分别采集了山西省东南部3个羊场羊舍的真菌气溶胶，分析其气载真菌浓度和真菌气溶胶的粒径特点。结果表明，羊舍气载真菌一年中以秋季浓度最高，显著高于其他季节（P<0.05），且秋季一天上午、中午、下午3个时间段中，浓度差异显著（P<0.05）；羊舍真菌气溶胶粒子4个季节在采样器上的分布基本相同，高峰出现在第Ⅳ级，主要分布在Ⅲ~Ⅴ级，占各级总数的72.66%~83.87%，可进入人和动物的肺泡；羊舍真菌气溶胶粒子计数中值直径（CMD）为1.3~2.9 μm，粒径分布的离散度（GSD）为1.6~2.7 μm；夏季CMD显著低于其他季节（P<0.05）。综合以上结果，羊舍气载真菌浓度与季节密切相关，80%左右气溶胶粒子可进入人和动物肺泡，且CMD小于其他动物圈舍，潜在危害较大。

关键词: 羊舍; 气溶胶; 气载真菌; 粒径分布

Abstract:

In order to provide the basis for the environmental control of sheep houses,the variation of airborne fungal concentration and the aerodynamic characteristics of fungal aerosols were researched in the Southeast Shanxi province.An Andersen six-stage microbial sampler was used to collect air and Rose Bengal Medium (RBM) was used as the medium.Airborne fungi were collected from three sheep houses in Southeastern Shanxi province in four seasons a year.The concentration and particle size characteristics of airborne fungi were analyzed.The results showed that the highest airborne fungal concentration was in autumn,which was significantly higher than the other seasons (P<0.05),and the concentration difference was significant in the 3 periods of morning,noon and afternoon in autumn (P<0.05);The distribution of fungal particle in sampler were same basically in four seasons,and the peak appears at the stage Ⅳ,the fungal particle were mainly distributed from stage Ⅲ to Ⅴ of the sampler,accounting for 72.66%-83.87% of total number;The CMD of airborne fungi ranged from 1.3 to 2.9 μm,The GSD ranged from 1.6 to 2.7 μm;The CMD of summer was significant lower than other seasons (P<0.05).In conclusion,the concentration of airborne fungi in sheep house was closely related to season and had large potential hazards.About 80% of aerosol particles could enter the alveoli of human and animal,the CMD of sheep house was smaller than other animal houses.

Key words: sheep house; aerosol; airborne fungi; particle size distribution

中图分类号:

S851.2⁺4

李治国, 于欢, 张鑫泽, 杜叶叶, 张红敏, 曹棋棋, 郭耀, 乔婷婷, 霍乃蕊, 刘兴国, 古少鹏. 山西省东南部羊舍气载真菌浓度变化及空气动力学特征[J]. 《中国畜牧兽医》, 2018, 45(7): 2034-2040.

LI Zhiguo, YU Huan, ZHANG Xinze, DU Yeye, ZHANG Hongmin, CAO Qiqi, GUO Yao, QIAO Tingting, HUO Nairui, LIU Xingguo, GU Shaopeng. Concentration Variation and Aerodynamic Characteristics of Airborne Fungi in Sheep Houses in Southeastern Shanxi Province[J]. , 2018, 45(7): 2034-2040.

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山西省东南部羊舍气载真菌浓度变化及空气动力学特征

Concentration Variation and Aerodynamic Characteristics of Airborne Fungi in Sheep Houses in Southeastern Shanxi Province

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