(接上期)5　幼虫培养及管理5.1　浮游幼虫(“D”形幼虫)培养　水温25℃时受精卵约需20h(水温越高,孵化时间越短)发育至“D”形幼虫。幼虫壳长达90～100μm时,将孵化池的幼虫充气、搅匀、取样、定量后,按培育密度选育到培育池内。根据上浮幼虫的密集程度,可采取撇取、网捞和虹吸 (Continued) 5 larval culture and management 5.1 plankton larvae (“D” larvae) culture water temperature 25 ℃ fertilized eggs takes about 20h (the higher the water temperature, the shorter the incubation time) to “D” larvae. Larvae shell up to 90 ~ 100μm, the larvae of the incubator inflatable, stir, sampling, quantitative, according to the breeding density breeding to the incubation pool. According to the density of floating larvae, can take skimming, net fishing and siphon