寒冷地区工厂化肥猪舍温热环境的评价

通过测试与观察表明,这类低隔热、自然通风、自然采光的猪舍,即使不采暖、不使用垫草,通过有效的环境管理措施可以形成比较满意的温热环境。这些环境管理措施包括:高养猪密度、低通风量、改进猪舍建筑结构与设备以防止贼风与潮湿,减少猪体失热,诸如在窗户上蒙塑料膜和在天棚上加铺保温层等。为防止猪栏内脏污和最大限度地减轻通风负荷、在进行环境设计时和在管理工作中应当对猪排粪行为的应用给予足够的重视。

EVALUATION OF THERMAL ENVIRONMENT OF HOUSES FOR PIG INDUSTRY IN COLD REGIONS

By the effective environmental management, low insulated, natually ventilated and lighted houses without supplement heat and straw could provide satisfactory thermal environment for growing finishing pigs in cold regions the North-eastern China. Environmental management should include: higher stocking densities, lower ventilation rate, optimazation facilities and structure of accommodations to protect from the draft and moisture, to decrease the heat loss from pigs, such as to place an insulation layer polystyrene film on the inside of the windows and to put insulation layer on top of the cailing. In order to prevent mud in pens and maximum decrease the loads of the ventilation, in practice of environment design and in system husbandry must attach great importance to application of the eliminative behaviour of the pigs.