营养水平对高温季节蛋鸡生产性能的影响

Effect of Egg Laying Performance Hens in High Temperature Seasons with Nutritional Levels

采用饲养试验分别测定蛋鸡产蛋期 ME、CP的采食量。结果表明 ,在 2 4℃以上的高温环境中 CP的供给量要适宜提高 ,ME稍低。饲粮的 ME11.5MJ/ kg和 CP16.5%是最适合于产蛋率低于 70 .0 %的产蛋鸡 ,相应的蛋能比以 14 .3 g/ MJ为宜 ,变动范围应在 14 .0～ 16.0 g/

This study adopts feeding experiments to detect respective the amount eaten by egg Laying hens of ME?CP. Resulis of experiments indicate that under high temperature environment above 24℃ the CP should be reasonably higher and ME lower. The oplimal contents in ration for egg laying hens with egg productivity below 70% are ME 11 5 MJ/kg and CP 16 5%. The ratio of egg versus energy should be 14 3 g/MJ and 14 0～16 0 g/MJ in range change.