妊娠后期母兔注射甲状腺素T4对仔兔的影响

Effect of Post-pregnant Female Rabbits Injected with Thyroxin T4 on Weaning Rabbit

为探讨妊娠后期母兔注射甲状腺素T4对仔兔的影响,将9只妊娠16日皖系长毛兔随机分成2组,试验组5只,对照组4只。试验组皖系长毛兔母兔每只肌肉注射0.3 mg甲状腺素（T4）,发现T4处理未能显著影响仔兔初生重、4周龄和6周龄体重,但显著提高了7~14 d2、1~28 d和35~42 d仔兔的增重,并且其他期间的增重试验组也均高于对照组。结果表明：T4处理可以提高仔兔初生时血浆胰岛素水平,从而提高出生后仔兔的生长速度。

For investigating the effect of Wanxi strain angora female rabbits injected T4 thyriod hormone in late pregnancy on the weaning rabbits,nine Wanxi strain angora female rabbits in 16th days pregnancy were randomly divided into two groups,the experimental group had 5 rabbits,the control 4.The female rabbits in experimental group were treated with 0.3 mg thyroxine T4,and T4 treatment failed to significantly affect the birth weight of weaning rabbits,4 weeks and 6 weeks body weight,but significantly increased from 7 to 14 days,21-28 days and 35-42 days weight gain than other periods in the control group.The results showed that T4 treatment could improve the newborn rabbits＇ plasma insulin levels to increase the growth rate of weaning rabbits after birth.