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北方地区大型钟楼式奶牛舍空气环境的评价

发布时间:2018-11-28 12:08
【摘要】:试验对北方地区某大型钟楼式奶牛舍一年内不同季节舍内、外的空气环境指标,包括温热环境指标、CO2和NH3含量、空气中的粉尘和微生物含量进行测定,旨在了解其变化规律,评价其是否满足奶牛健康生产的要求,以便为北方地区奶牛舍的设计和日常管理提供理论依据。结果表明,所测指标随季节或时间均呈现出一定的变化规律;所监测奶牛舍夏季舍内风速低于标准,中午(14∶00)舍内温度超过27℃,温湿指数(THI)69,奶牛在夏季产生轻度的热应激;除此以外,在不同时间、不同位点监测的其他各项空气环境指标均符合奶牛的饲养标准。综合测定结果,试验所监测的钟楼式奶牛舍较适合北方地区的奶牛养殖,但建议增加防暑降温措施,以减少奶牛在夏季产生的热应激。
[Abstract]:The air environment indexes, including temperature and heat environment index, CO2 and NH3 content, dust and microbial content in air, were measured in a large bell tower dairy cow house in the north of China in different seasons in a year, in order to understand its changing law. To evaluate whether the dairy cattle can meet the requirements of healthy production in order to provide a theoretical basis for the design and daily management of dairy cattle houses in northern China. The results showed that the indexes showed a certain variation with season or time. The wind speed was below the standard in summer, the temperature was over 27 鈩,

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