中国东南地区猪舍夏季降温效果的试验研究

Experimental Study on Cooling Effect of Piggery in the South-east China

对中国东南地区猪舍夏季各种降温措施进行了试验研究 ,试验结果表明 ,屋顶遮阳网的降温效果优于其他降温措施 ,在高温时段与猪体颈部喷淋结合 ,效果更佳 ,适于在现有猪场或投资小的猪场推广应用。

Various systems of piggery cooling in the south east China were studied. The effects of aluminum foil sunshade screen on the roof of a piggery on decreasing t T and on the response of pigs to heat stress were remarkable accompanying with showering pig's neck during high temperature period. At the same time, an aluminum foil sunshade screen is easy to rebuild and set up on different types of present piggeries, the investment is low (50～60 RMB/m 2), and it can achieve a quick effect. It can be rolled up after summer and used in the next year, so it doesn't influence the radiation of sun into pig housing in low temperature season. A pad cooling system is not an applicable means for high humid and hot environmental piggeries in the south east China. The result from the experiments showed that the effect of inside sprinkling on decreasing environmental temperature wasn't as remarkable as that of the above method. Heat insulated roof of piggery can decrease the degree of high humid and hot environment and can solve the problem of heat preservation in winter, however the investment of it is rather high (180~ 210 RMB/m 2), so it may be adopted in large scale intensive pig farms.