自动防疫系统对冬季鸡舍空气净化的效果

试验选用300型空气电净化自动防疫系统和3DDC-12型粪道等离子体除臭灭菌系统(二者简称为自动防疫系统)，测定其对冬季蛋鸡舍空气的净化效果。选取尺寸、样式和饲养密度等完全相同的两栋蛋鸡舍作对比试验，两栋鸡舍通风采用自动控制装置。在试验鸡舍安装自动防疫系统，测定两栋鸡舍舍内有毒有害气体和空气细菌总数的浓度。结果显示，两栋鸡舍在适当通风条件下（使舍内温度维持在(14.2±0.4)℃），对照鸡舍和试验鸡舍的空气细菌总数平均浓度分别为 17.8 cfu/L和11.72 cfu/L（P＜0.01），自动防疫系统使之降低34.2%；空气粉尘的平均质量浓度分别为5.52 mg/m3和 3.54 mg/m3（P＜0.01），自动防疫系统使之降低35.9%；蛋鸡平均日死亡只数分别为4.68只和2.53只（P＜0.01），自动防疫系统使之降低46.0%。试验表明，舍内安装自动防疫系统能显著降低鸡舍空气细菌总数浓度和空气粉尘浓度，降低蛋鸡死亡率。

Effects of the automatic epidemic prevention system on air quality of henhouse in the winter

This study chose the 300 automatic epidemic prevention system of space electric air purification and the 3DDC-12 deodorizing and sterilization system of plasma in manure gaps (both for short automatic epidemic prevention system) to determine the effect of cleaning the air in the henhouses in winter. The comparative trials were carried out in two henhouses with same poultry density, same ventilation and temperature controlling system. With the automatic epidemic prevention system installed in the experimental henhouse, the concentration of harmful gases, air microorganisms and dusts under certain conditions were measured in both henhouses. The results of Experiment 2 showed that under proper ventilation conditions which kept room temperature at 14.2±0.4℃, automatic epidemic prevention system resulted in reduced air concentrations of microorganism, dusts and a lower mortality number in the experiment henhouse by 34.2%, 35.9%, and 46.0% respectively than what did in control henhouse (17.8 vs. 11.72 cfu/L, P<0.01; 5.52 vs. 3.54 mg/m3, P<0.01; 4.68 vs. 2.53 per day, P<0.01). The result showed that the automatic epidemic prevention system could significantly decrease microorganism, air dusts and the mortality rate.