首页> 中文期刊> 《农业工程学报》 >北京市繁殖猪舍高温环境控制状况

北京市繁殖猪舍高温环境控制状况

         

摘要

High temperature is an important environmental factor that influences reproduction of pig. In order to lessen heat stress of reproductive pig, construction types of pig house and cooling methods of reproductive piggery were investigated in 2009, indicators of thermal insulation of common types of wall of piggery were calculated, and inner temperature of the reproductive pig houses was tested. The result indicated that the proportion of enclosed, semi-enclosed and greenhouse pig house was 74.0%, 23.7% and 2.3% respectively. Among present wall materials, the performance of thermal insulation of composite wall with brick covered with polystyrene foam plastic was the best. In test periods, inner temperature of piggery was consistent with outer temperature of piggery approximately, inner temperature of piggery was higher than outer temperature in most time. In the end, advices of high temperature environment control were proposed.%高温是影响猪繁殖性能的重要环境因素.为了缓解北京市繁殖猪的热应激,于2009年对北京市猪舍的建筑类型、降温方式进行了调查,对常见猪舍外墙类型的隔热指标进行了计算评价,并对繁殖猪舍内温度进行了测试,结果表明:北京市猪舍建筑类型调查样本中,有窗封闭式、半开放式和温室大棚式猪舍的比例分别为74.0%、23.7%和2.3%;繁殖猪舍的降温方式中,通风降温和以水为媒介的降温方式各占50%左右;在现有猪舍外墙构造类型中,外贴聚苯板内砌砖的复合墙体的隔热性能最好.北京市夏季繁殖猪舍内温度与舍外变化趋势基本一致,多数时间内舍内温度高于舍外.最后,提出北京市目前繁殖猪舍的高温环境调控建议.

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