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尖吻鲈(Lates Calcarifer)在华南地区的池塘饲养条件下,可以从鱼苗培育成性腺成熟的亲鱼,其强化培育主要措施是在适当的放养密度下掌握好饲料的日常投喂和季节性调整,并注意池塘水质和盐度等。成熟亲鱼的外观特征与其它池养鱼类的性成熟特征基本相似。本试验于1990年9月初进行催产,共五批,计19组次,其中受精率较高的两批分别为89.94%和96.6%,孵化率为83.94%和88.0%,总计获苗409万尾,达到了批量生产的规模。通过比较,催产剂以使用LRH-A+DOM较好;结合生产试验,对尖吻鲈的胚胎发育亦作了观察。
Lates Calcarifer can grow into gonadal matured broodstock from pond under the condition of pond raising in South China. The main measures of intensive growth are to master the daily feeding and seasonal adjustment of feedstuff under proper stocking density, And pay attention to pond water and salinity. The appearance characteristics of mature broodstock are similar to the sexual maturity characteristics of other pond fish species. The test was carried out in early September 1990, a total of five batches, accounting for 19 groups, of which two groups were higher fertilization rate was 89.94% and 96.6%, the hatching rate was 83.94% and 88.0%, a total of 4.09 million seedlings , Reached the scale of mass production. By comparison, the use of LRH-A + DOM as the oxytocin was better; in combination with the production test, the embryo development of the barramundi was also observed.