摘要
通过检测河北省不同地区6种有代表性建筑类型的肉牛舍内外空气中的细菌含量,对夏季和冬季肉牛舍的空气环境质量进行分析。夏季各地区牛舍中不同检测高度的细菌数量没有表现出显著差异(P>0.05),而冬季3种密闭式牛舍内,1.2m高的细菌数量均显著高于0.6m(P<0.05),分别达到98.2CFU/m3和68.3CFU/m3;夏冬两季不同建筑类型的牛舍内细菌数量均显著高于舍外(P<0.05),且冬季密闭式牛舍内细菌数量达到75.5×103～88.1×103 CFU/m3,是舍外的2.6～9.6倍,远远超过夏季(83.2×103 CFU/m3)。该研究为肉牛舍的设计和牛舍环境的改善提供理论基础。
The research was to investigate bacteria concentration between indoors and outdoors beef buildings in summer and winter time. Six types of beef buildings were used in various regions in Hebei province. The bacteria concentration at sites of 1.2 m high indoors was not significantly different from bac- teria at sites of 0.6 m high （P〉0.05） in summer, while the concentration at sites of 1.2 m in three styles of closed buildings in winter was highly significant than concentration at sites of 0.6 m （P〈0. 05）, avera- ging 98.2 CFU/m3 and 68. 3 CFU/ma, respectively. Moreover, the indoors bacteria concentration was higher than outdoors in both seasons （P〈0.05）,the concentration indoors particularly in closed buildings in winter reached 75.5×10388.1 ×10a CFU/ma , with 2.6-9.6 folds higher than outdoors, which ex- ceeded bacteria concentration 83. centration can provide theoretical 2×103 CFU/m3 in summer. This study suggested that foundation for the design of beef building and improving the bacteria con- ItS environment.
出处
《家畜生态学报》
北大核心
2013年第2期49-52,共4页
Journal of Domestic Animal Ecology
基金
国家肉牛牦牛产业技术体系建设专项资金(CARS-38)
河北省科技支撑计划(10220401D)
关键词
肉牛舍
微生物
空气质量
beef cattle housing
microorganism
air quality
