【摘要】 本文将两批年龄相近 ( 3 4～ 3 5周龄 )的肉用种鸡分别饲养在安装了湿帘降温系统鸡舍和半开放式鸡舍中。通过比较试验研究 ,结果表明 ,在湿帘降温系统鸡舍中的种鸡比半开放式鸡舍的产蛋率高 1 .3 6% ( P<0 .0 5 )、种蛋受精率高 0 .1 4%、种鸡死亡率低 0 .5 5 % ( P<0 .0 5 )。表明在鸡舍中安装湿帘降温系统能显著提高种鸡产蛋率同时降低死亡率更多还原

【Abstract】 The two groups of quality breeder hens were bred in two kinds of chicken houses, the houses with wet curtain cooling system and the other ones without it.The results showed that for the hens bred in wet curtain Cooling system the egg laying rate was 1.36%,the fertilization rate was 0.14% higher and the mortality of breeder hens was 0.55% lower than those of the control groups respectively.更多还原