二氢吡啶以三个不同水平(0、50、100mg/kg)添加饲喂雄性尼罗罗非鱼33d,探讨二氢吡啶的适宜添加水平及其对血清T3、T4水平的影响。结果表明,添加二氢吡啶(50、100ng/kg)可使日增重分别提高11.9%(p=0.063)、6.8%,体重特定生长率提高12.6%(p<0.05)、8.7%,饵料系数分别较对照组降低9.0%、6.9%,但对试验鱼平均存活率及背侧肌组成无影响;试验末,50mg/kg组血清T3水平极显著高于对照组(2.449±1.119,1.757±0.555p<0.01),T4均处于不可测水平。 Dihydropyridines were fed to male Nile tilapia at three different levels (0, 50 and 100 mg / kg) for 33 days to investigate the appropriate dosage of dihydropyridine and its effect on serum T3 and T4 levels. The results showed that dihydropyridine (50,100ng / kg) increased daily gain by 11.9% (p = 0.063), 6.8%, specific growth rate by 12.6% (p <0.05) Respectively. Compared with the control group, the T3 level in the 50mg / kg group was significantly lower than that in the control group (2.449 ± 1.119,1.757 ± 0.555 p <0.01), T4 are at unpredictable levels.