中国畜牧杂志2017，Vol.53Issue(12)：106-110,5.DOI:10.19556/j.0258-7033.2017-12-106
北京市典型奶牛舍夏季温热环境和空气质量的评价
Thermal Environment and Air Quality of Summer in a Typical Barn of Lactating Cow in Beijing Area
摘要
Abstract
This study evaluated the thermal environment and air quality of typical barn of summer in Beijing.The thermal environment indicators and air quality were measured at different sampling times (08:00-09:00,10:00-1 1:00,12:00-13:00,14:00-15:00,16:00-17:00,18:00-19:00) and different positions of dairy barn in Beijing suburb.Results showed that,with the change of sampling time,the temperature increased first and then decreased,while the change of relative humidity was opposite.The temperature and humidity indexes (THI) in different sampling times was higher than the appropriate environment for lactating cows and thus the cows suffered from heat stress (THI＞72).During 14:00-15:00 period,the wind speed was the highest.During 18:00-19:00 period,the concentration of PM 2.5,PM 10,ammonia and carbon dioxide were the highest.In addition,wind speed of sunny slope,ammonia concentration of shade-side and carbon dioxide concentration of feeding channel were greater than that in the other two positions.Compared with the inside of the barn,the outside of the barn had higher values of temperature,THI and ammonia concentration (P＜0.01),and lower values of wind speed and carbon dioxide (P＜0.01).It was concluded that dairy cows suffered from heat stress at the measuring time in the barn.However,the air movement in the barn alleviated heat stress of cows partly.The PM,ammonia and carbon dioxide concentrations conformed to the standard of production,which was better in sunny slope than shady slope and feeding channel.Temperature and THI inside the barn was lower than that of outside the barn,which indicated the barn played a role of insulation in summer.关键词
奶牛/泌乳牛舍/夏季/温热环境/空气质量Key words
Dairy/Cow barn/Summer/Thermal environment/Air quality分类
农业科技引用本文复制引用
陈健,彭丹丹,何祥波,李淦,王占彬,顾宪红..北京市典型奶牛舍夏季温热环境和空气质量的评价[J].中国畜牧杂志,2017,53(12):106-110,5.基金项目
国家重点研发计划课题(2017YFD0502003、2016YFD0500507) （2017YFD0502003、2016YFD0500507）
奶牛产业技术体系北京市创新团队项目(BAIC06-2017) （BAIC06-2017）
中国农业科学院科技创新工程(ASTIP-IAS07) （ASTIP-IAS07）
