The aim of the present study is to find the controlling factors of the artificial inducement repro-duction of varicorhinusmacrolepis .Different types and doses of oxytocin were injected into the parents of vari-corhinusmacrolepis for artificial inducement reproduction , and concentrations of gonadotropin ( GtH) in male and female parent fish were measured before and after the injection of oxytocin .Results showed that the high-est spawning rate group was which was injected with 25IU Human Chorionic Gonadotropin ( HCG) +0.4μg Luteinizing Hormone Releasing Hormone -A2(LHRH-A2) +0.2mg Domperidone (DOM), and the spaw-ning rate reached 66.7%, which was significantly higher than the control group .After waiting for about 12 hours, eggs were squeezed and inseminated artificially , and then the fry was hatched successfully .Secondly, the effect of oxytocin was associated with the development level of the parent fish .Finally , the injection of ox-ytocin could improve the level of gonadotropin ( GtH) in male and female parent fish .%本研究以不同种类及剂量的催产药物对泰山螭霖鱼进行注射催产，并测定了催产前后亲鱼体内GtH水平的变化．结果表明：以人体绒毛膜促性腺激素（HCG）25IU＋促黄体释放激素类似物A2（LHRH－A2）0．4μg＋地欧酮（DOM）0．2mg的催产组效果最佳，其效应时间12h左右，催产率为66．7％，且与对照组差异显著，后经人工挤卵、授精，并成功孵化出了仔鱼；催产效果与催产时机（亲鱼的性腺成熟度）相关；催产药物可提高雌雄亲鱼体内促性腺激素（ GtH）的水平．
展开▼
