家鱼人工繁殖中的几个重要环节

本文对家鱼人工繁殖中适宜的时间、亲鱼成熟度的鉴别、雌雄配比,适时催产、孵化操作及有关注意事项作了系统介绍。指出第一次注射至第二次注射的间隔时间以8——10小时为宜。适时对性成熟的亲鱼正确催产,控制好孵化用水的水质流速是提高孵化率的主要方法。

On Some Main points of Artificial Propagation of Domestic Fish

The article has made a systematic introduction to the artificial propagation of domestic fish about its appropriate time, discrimvnation of mature degree of parent fish,suitable match between male and female, an injection of parturifacient manipulation of hatch and the relevant matters needing attention.lt points out that there is an appropriate interval of 8-1 hours between the first and the second injection The main methods to raise the rate of hatch are to control well water quality and current velocity of the water which is used for hatch.