封堵后窗对肉牛舍风速、二氧化碳及氨气浓度的影响

Effect of Closure of Back Window on Wind Speed, Carbon Dioxide and Ammonia Concentration in Beef Cattle House

以肉牛舍作为试验对象进行舍内环境的研究,比较分析入冬时节是否封堵后窗对牛舍内风速、二氧化碳及氨气浓度影响的差异,从而指导在该季节该地区更好的修缮牛舍、养好育肥牛提供指导参数。试验结果表明:风速在试验时间段12:00、2:00,室外对照与开放舍差异不显著(P 】0.05),在20:00、4:00试验时间段三组比较差异不显著(P P P 】0.05),其余时间段相比较差异极显著(P 【0.01),建议在保暖同时要兼顾通风设计,以提高舍内的空气质量,减少疾病的发生。

In order to provide guidance parameters for better repair and fattening cattle in this season, the indoor environment of beef cattle barn was studied, and the differences of wind speed, carbon dioxide and ammonia concentration in beef cattle barn affected by blocking back windows in winter were compared and analyzed. The results showed that the wind speed was significantly different between the outdoor control group and the open house at 12:00 in the test period (P P P >0.05), but there was a significant difference in the rest of the time (P