【摘要】 选择健康华北柴鸡商品雏200只为试验材料,饲养期共16周,在初生和各周龄末空腹称重,计算各周绝对增重、相对增重。从研究结果看,华北柴鸡体重的绝对增重在8周龄最高,公鸡与母鸡虽然增重数值略有差异,但生长高峰出现的时间基本相同。更多还原

【Abstract】 We select 200 chickens of North China chai chicken to do the experiments. The raising term is 16weeks. The weight is measured at birth and at the end of every week to calculate the absolute weight gain, the relative weight gain. From the experimenting results we can see the absolute weight gain peaks of the North China chai chicken at the 16th week. Male chicks and female chicks weight gain values are slightly different, but the time of growth peak is basically the same.更多还原