The results showed that dietary supplemented with 0.1 mgT3/kg improved accumulative growth, average body-weight gain and relative growth ratio before 6th-week, and retarded them after 6th-week.

• 结果表明，日粮中添加0.；1mgT3/kg可提高乌鸡6周龄以前的累积生长、平均增重和平均日增重、相对生长率； 6周龄以后起抑制作用。