9 0.9 脂肪消化系数 Lipid digestibility coefficient 0.9 0.9 蛋白价为 Protein value 0.9 0.9 鸡舍环境（House environment） 管理方式为（平饲铺垫料、笼饲）Rearing method（litter floor, cage） 平 饲 铺 垫 料 Litter floor 饲养密度（只/m 2 ）为 St...
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本试验用麦草、锯末、黄沙三种垫料铺垫鸡舍，饲养星布罗父母代种鸡，比较不同垫料对鸡舍环境卫生学指标及其对种鸡生产性能的影响。
With Starbro breeding chickens, three kinds of litters were studied to compare their effect on the environment sanitation indexes of henhouse and productive performances of birds.
本文研究了春季蛋鸡舍空气环境因素对伊莎蛋鸡生产性能的影响。
The effect of environmental air factor in the laying house on the productivity of layers in spring was studied in this paper.
结果表明，该类鸡舍的隔热性能不够理想，高温季节舍内环境参数随外界变化较明显。
The results showed that the heat insulation of the coop was not good. The indoor climate changed greatly with outside one in the high temperature seasons.
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