The serum GtH levels in male and female Japanese eel increased dramatically 1 day after each injection of CPE+HCG, then gradually decreased 10 days after.

• 雌雄鳗鲡每次注射CPE +HCG后 1天 ,血清促性腺激素 (GtH)急剧上升 ,10天后逐渐下降 ,但雌鳗在注射 7次后 10天血清GtH水平仍然显著高于相应对照组。