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北方地區(qū)大型鐘樓式奶牛舍空氣環(huán)境的評價

發(fā)布時間:2018-11-28 12:08
【摘要】:試驗對北方地區(qū)某大型鐘樓式奶牛舍一年內(nèi)不同季節(jié)舍內(nèi)、外的空氣環(huán)境指標,包括溫?zé)岘h(huán)境指標、CO2和NH3含量、空氣中的粉塵和微生物含量進行測定,旨在了解其變化規(guī)律,評價其是否滿足奶牛健康生產(chǎn)的要求,以便為北方地區(qū)奶牛舍的設(shè)計和日常管理提供理論依據(jù)。結(jié)果表明,所測指標隨季節(jié)或時間均呈現(xiàn)出一定的變化規(guī)律;所監(jiān)測奶牛舍夏季舍內(nèi)風(fēng)速低于標準,中午(14∶00)舍內(nèi)溫度超過27℃,溫濕指數(shù)(THI)69,奶牛在夏季產(chǎn)生輕度的熱應(yīng)激;除此以外,在不同時間、不同位點監(jiān)測的其他各項空氣環(huán)境指標均符合奶牛的飼養(yǎng)標準。綜合測定結(jié)果,試驗所監(jiān)測的鐘樓式奶牛舍較適合北方地區(qū)的奶牛養(yǎng)殖,但建議增加防暑降溫措施,以減少奶牛在夏季產(chǎn)生的熱應(yīng)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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