南方地区新型羊舍环境评价及对山羊日增重的影响

为了研究新型羊舍夏季小气候环境以及设计合理的饲养密度，在夏季检测了新型羊舍和西南地区常见的双坡顶漏缝地板有窗封闭式羊舍的空气环境参数，同时测定了不同饲养密度羊舍对羊体增重的影响。结果表明：①新型羊舍日平均温度和日最高温度极显著低于有窗封闭羊舍（P＜0.01）；有窗封闭羊舍与新型羊舍相比，相对湿度显著较高（P＜0.05），同时羊舍内湿度极显著高于外界湿度（P＜0.01）；②通过称重比较，试验期间低密度组羊只的体增重极显著高于中密度组和高密度组，当饲养密度增加一倍时，羊只的体增重极显著降低（P＜0.01）。综合分析认为，新型羊舍夏季小气候环境明显优于有窗封闭羊舍；在合适的饲养密度下，羊舍羊群增重效果好，羊群发病率低。

The Environmental Assessment of New Type Shed in Southern China and Its Impact on Goat Daily Weight Gain

In order to study the new type shed summer microclimate environment and design reasonable stocking density ,this re-search examined the microclimate environment of new type shed and double slope airtight type with windows slatted floor goat shed,at the same time, this research determined the effect of goat daily weight gain in different stocking density.The results showed： ①Some indicators of new type shed in Southwest, such as daily average temperature and daily maximum temperature were significantly lower than the common double top slatted floor fenestrated and airtight goat shed（P〈0.01）,the relative humid-ity of double top slatted floor fenestrated and airtight goat shed was significantly higher than new type shed （P〈0.05）and external environment（P〈0.01）;②Under the condition of weighing,low-density group goat body weight gain was significantly higher than the medium-density of the group. When the rearing density doubled,high-density group goat daily weight gain was significantly lower（P〈0.01）. The results indicated that the microclimate environment of the new type shed was significantly better than double top slatted floor fenestrated and airtight goat shed;Under the suitable breeding density,the goat had a remarkable effect on gain-ing weight and enhancing illness-resistance of goat.