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1.孵化率、出鱼率孵化率是指孵出鱼苗数占受精卵数的百分比。在生产上难以统计,同时也没有多大实际意义。所以生产上一般统计出苗率(鱼苗下塘率)。出苗率就是指可以下塘的鱼苗数占受精卵数的百分比。2.夏花鱼种夏花鱼种也称为寸片或火片,即鱼苗饲养15～20天,养成体长3厘米左右?
1. Incubation rate, the rate of fish hatching rate refers to the number of hatched fry as a percentage of the number of fertilized eggs. Difficult to produce statistics, but also not much practical significance. Therefore, the production of the general statistics of the emergence rate (fry pond rate). Germination rate refers to the number of fish ponds can be accounted for under the pond as a percentage of the number of fertilized eggs. Summer flower species Summer flower species also known as inch pieces or pieces of fire, that is, fry feeding 15 to 20 days to develop body length of about 3 cm?