挡风墙对母牛棚内风速、CO₂、NH₃和H₂S影响

Effect of Windscreen Wall on Wind Velocity, CO₂, NH₃ and H₂S in Cattle Shed

摘要: 目的：研究冬季不同月份可繁母牛敞棚栏内是否设置挡风墙，对风速、二氧化碳、氨气、硫化氢浓度的影响，试验方法：试验分为三组分别是挡风栏，敞棚栏和牛舍外，每组测定5个点，连续测定三天。试验结果显示寒冷季节设置挡风墙对肉牛舍内风速方面在十一月、三月、五月有显著差异(P < 0.05)，二氧化碳方面在十一月、三月、四月有极显著差异(P < 0.01)，由于空气中不含氨气和硫化氢，所以无测量结果。结论：设置挡风栏可繁母牛舍风速得到很好控制，但是却显著增加了二氧化碳含量。

Abstract: The effects of wind-break walls on wind speed, carbon dioxide, ammonia and hydrogen sulfide concentration were studied in different months of winter. The test is divided into three groups: the windshield, the shed and the cowshed. Five points were measured in each group and continuously measured for three days. The test results show that there is a significant difference in the wind speed in the beef barn in November, March and May in the cold season (P < 0.05), and there is a significant difference in carbon dioxide in November, March and April (P < 0.01), since there is no ammonia gas and hydrogen sulfide in the air, there is no measurement result. The setting of the wind barrier can control the wind speed of the cow barn, but it significantly increases the carbon dioxide content.