密闭式鸡舍动物水平高度和人体水平高度环境状况对比

畜舍环境控制系统对畜禽的健康和生产有着重要的影响,一是可以使动物周围的空气维持合适的温度、湿度和风速,避免热应激和冷应激的出现。二是排出畜舍中的有害气体、灰尘和微生物,改善畜禽舍的空气环境质量。在畜禽环境设计、运行和环境管理中,一般都以畜舍内的空气环境为目标,而很少以动物真正感觉到的环境状况,即动物周围的环境情况为判定依据。为此,作者在北京某鸡场密闭式育雏育成平养鸡舍中进行了试验研究,分别在加热期间、离温初期和育雏育成末期三个阶段,对0.2m的动物水平和1.5m人体水平的环境参数进行了现场测试、分析和比较。

A comparison of animal level and person level environment for insulated building

The major purpose of environmental control system is to provide an environment in which animal health is maintained and productivity is satisfactory. On one hand, the system controls air temperature, relative humidity and air speed around the animals, on the other hand, it maintains tolerable concentrations of gases, dust and airborne microorganisms. The investigations were carried out in an insulated building with pullets kept on straw bedding. The environmental parameters 0.2m animal level and 1.5m person level above floor level were tested and analyzed.