Feeding Effect Study on Confined HighDensity StackedCage Laying Houses in Haikou

In the view of the practical application of stackedcage rearing laying hen technology in Haikou, some performance tests had been made in a stackedcage laying house such as laying rate, death rate and so on. It was drawn that laying rate is almost equal to the standard value , the weight of per egg lower than the standard value, the broken egg rate less than 0.4%, feedegg rate less than 2.3∶1 and death rate less than 10%. The whole performance is very well.