近年来,由于大鲵苗种价格较高,从事大鲵繁殖的利润空间较大,因此越来越多的大鲵养殖场尝试进行大鲵的人工繁殖。要做好大鲵人工繁殖工作,亲本培育是所有环节中的重中之重,如何区分大鲵亲本的性别并进行针对性培养就显得十分重要了。另外,对于参繁大鲵需要有合理的性比搭配,并且在注射催产剂时雌雄亲本的注射剂量和次数也各不相同。因此如果不能准确地判断大鲵亲本的性别将会严重影响繁殖工作的进展,进而带来巨大的经济损失。仅从目前关于大鲵研究报道的情况看,对幼鲵阶段和成鲵的非繁殖期进行大鲵的雌雄性别鉴别是一个公认的难 In recent years, due to the higher price of big seedlings and the huge profit margin for breeding big bream, more and more big bream farms try artificial breeding of big bream. It is very important to distinguish between the sexes of Dazu parents and their targeted cultivation in order to do a good job of artificial breeding of Dazhu. Parental cultivation is the top priority in all links. In addition, it is necessary to have a reasonable sex ratio for participating in large flocks, and the dosage and number of injections of male and female parents vary between injections of oxytocin. Therefore, if we can not accurately judge the sex of the parents, it will seriously affect the progress of the breeding work, resulting in huge economic losses. Judging from the current research reports on Tai Chi, it is generally acknowledged that it is difficult to discriminate between male and female of Tai Po in non-breeding stages