摘要
为研究蛋鸡舍侧墙进风口不同位置高度对蛋鸡舍内小环境的影响,以及合理改善蛋鸡舍内气流分布的均匀性,以我国北方最常见的侧窗进风、纵向通风蛋鸡舍为研究对象,选择A、B两栋仅安装高度不同侧墙进风小窗的蛋鸡舍,侧墙小窗规格一致(宽0.65 m、高0.23 m),安装高度分别为2.25 m、1.65 m,分别测试两栋舍内温热参数以及舍内空气环境质量。结果显示:A、B两栋蛋鸡舍内平均温、湿度之间均差异不显著(P>0.05),但不同走道间温、湿度存在显著差异(P<0.05);两栋蛋鸡舍内测点风速、氨气平均浓度差异显著(P<0.05);舍内二氧化碳平均浓度差异极显著(P<0.01)。结果表明:A栋蛋鸡舍内温湿度波动低于B舍,测点风速普遍大于B栋蛋鸡舍风速,有害气体浓度低于B舍。说明侧墙进风口位置高度不仅影响蛋鸡舍内温、湿度状况,而且影响舍内污染物的分布及排除。
The objectives of this experiment were to study the effect of inlet location on microenvironment and establish acceptably uniform air quality throughout the poultry houses. The inlets in typical tunnel and stair-step cage system were used in the experiment to compare air quality indexes obtained by two layer house （A and B）with different sidewall location. The width and height of A and B was 0.65 m×0.23 m. The installation height of A and B was 2.25 m, 1.65 m respectively. The results indicated that estimated temperature and humidity of the two houses were not significantly different （P〉0.05）, but there were significant differences in those among asides （P〈0.05）. There were significant differences in air velocity and ammonia concentration （P〈0.05）. The results showed that the carbon dioxide concentration was significantly different between A and B house （P〈0.01）. According to these results, the A house could prevent temperature stratification and air quality of whick was prior to B house. The air inlet location was the key to uniform distribution and movement throughout the house. Also, good inlet location could bring in fresh air to supply animal needs.
出处
《中国家禽》
北大核心
2016年第16期38-42,共5页
China Poultry
基金
现代农业产业技术体系建设专项资金(CARS-41)
中央高校基本科研业务费专项资金资助(2015SYL001)
关键词
蛋鸡舍
纵向通风
进风口
气流组织
环境参数
layer house
tunnel ventilation
air inlet
airflow
environment parameter
