斑点叉尾鮰(letulurus pantatus)属鲶形目.卵桔黄色.受精后呈粘性,结成铁状卵块。目前.美欧等主要养殖国家,人工繁殖通常采用池塘自然产卵人工孵化。孵化使用多种类型的孵化器。我们在1992～1993课题试验期间、采用池塘放置产卵巢诱导亲鱼产卵.用水车式水动力孵化器孵化,获得了成功。并对水车式水动力孵化器的性能和孵化技术进行了试验研究。 1 材料和方法 1.1 试验材料卵块取自涿州胡良鱼场。卵受精后吸水膨胀,正常受精卵桔黄色.每克卵 Letuurus pantatus is a member of the catfish species, orange in color, sticky after fertilization and forms iron-like eggs. At present, the United States and Europe and other major aquaculture countries, artificial breeding pond usually spawning artificial hatching. Incubation uses many types of incubators. We used the pond to lay ovaries to induce the broodstock to lay eggs during the pilot project from 1992 to 1993. It was successfully hatched with a water-powered hydrodynamic incubator. The experimental research on the performance and hatching technology of waterwheel hydrodynamic incubator was carried out. 1 Materials and Methods 1.1 Test Materials Egg pieces from Hu Liang fish farm in Danzhou. After the fertilization of the eggs, the water is swollen and the fertilized eggs are orange