摘要
采用ANDERSEN-6级空气微生物样品收集器在4个不同饲养阶段奶牛舍(A、B、C、D)内采集微生物气溶胶样本,通过测定牛舍环境中微生物气溶胶含量及其在ANDERSEN-6级采样器上的分布,分析环境因素与气载微生物含量的相关性,推断其对从业人员及牛体自身可能造成的危害。结果表明:不同饲养阶段牛舍环境中气载需氧菌含量存在一定差异,牛舍D(犊牛舍)内浓度最高,为3 484~3 596 CFU/m3,而在牛舍A(泌乳高峰期)内浓度最低,为1 332~1 434 CFU/m3。气载真菌在牛舍C(育成期)内浓度最高,为1 954~2 296 CFU/m3;在牛舍D(犊牛舍)内浓度最低,为1 742~1 791 CFU/m3,且二者差异显著(P<0.05)。此外,研究发现在不同饲养阶段的牛舍内气载微生物浓度与环境因子之间的相关性存在明显差异。研究结果对不同饲养阶段牛舍内改善和疾病预防具有一定的参考意义。
Samples of aerosol microorganism were collected in four cowsheds（ A,B,C D） at different feeding stages by six-stage ANDERSEN microorganism samples for detecting the concentrations of microorganism aerosol and its distribution in each stage of ANDERSEN-6 sampler and analyzing the correlation between environmental factors and airborne microbe content,to deduce the possible harm to the employees and the cattle themselves. The results showed that there was difference in the content of airborne aerobic bacteria in cowsheds at different feeding stages. And the highest concentrations of microbiological aerosol in calf shed were 3 484—3 596 CFU/m3,the lowest concentrations in lactation peak cowshed were 1 332—1 434 CFU/m3. And the highest concentrations of fungi aerosol in breeding period were 1 954—2 296 CFU/m3,the lowest in calf shed were1 742—1 791 CFU/m3,and the difference was significant（ P0. 05）. In addition,the correlation between the concentrations of airborne microorganisms and environmental factors in cowsheds at dif-ferent feeding stages was also found to be different. The results of this study have certain reference significance for improving the environment and disease prevention in cowsheds at different feeding stages.
作者
高云航
张喜庆
勾长龙
周海柱
马红霞
娄玉杰
GAO Yunhang;ZHANG Xiqing;GOU Changlong;ZHOU Haizhu;MA Hongxia;LOU Yujie(College of Animal Science and Technology,Jilin Agricultural University,Changchun 130118,China)
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2018年第4期480-485,共6页
Journal of Jilin Agricultural University
基金
国家现代农业产业技术体系建设专项(CARS-37)
国家重点研发计划专项(2016YFD0501400
2018YFD0501800)
吉林省科技发展计划项目(20170101073JC)
吉林省教育厅项目(JJKH20180643KJ)
关键词
奶牛舍
气载需氧菌
气载真菌
环境因子
cowshed
airborne aerobic bacteria
fungi aerosol
environmental factor
