7.人工孵化方法与管理:我国首次大鲵人工催产获得人工授精卵的是湖南省水产科学研究所与桑植县娃娃鱼研究所。1978年首批获得的人工授精卵,曾采用微流水于盆中孵化,孵化中发现大鲵胚的卵黄膜十分脆弱,流水孵化易使卵黄膜破裂,使胚胎发育中途夭折,所以孵化率极低。1980年的受精卵采用搪瓷脸盆定时换水的静水孵化。换水加水时,动作要轻细,同时注意新加水与盆中 7. Artificial hatching method and management: the first large-scale artificial ovulation artificial insemination eggs in Hunan Province Institute of Fisheries and Sangzhi County salamander Institute. In 1978 the first batch of artificial insemination eggs, had used microfluidic incubation in the pot, incubation found in the embryo yolk membrane is very fragile, easy to run water incubation yolk membrane rupture, embryo development midway die, so the hatching rate is extremely low. 1980 fertilized eggs enamel washbasin with regular water hatch. Water change water, the action should be light, while paying attention to the new water and pots