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１河规模化育苗的工艺流程河鱼卵粒小，卵径仅有１．１毫米左右；性腺指数高，怀卵量大，这为规模化育苗创造了前提条件。下面将河鱼规模化育苗生产工艺流程图列于图１。２河规模化育苗的技术关键据此流程图及生产实践经验，成功地规模化育苗还应把握好如下技术环节。２．１具?
1 River scale breeding process River eggs small, only about 1.1 mm in egg diameter; gonadal index, a large number of eggs, which for the large-scale nursery stock to create a prerequisite. Below the scale of river fish breeding production process flow chart is shown in Figure 1.2 river scale seedling technology key According to this flow chart and production practice experience, the successful large-scale breeding should also grasp the following technical aspects. 2.1 with?