鱼类 [鳉鱼、金鱼、公鱼（Hypomesus）、鲤、刺鱼等]和八目鳗等的未受精卵的表层结构，鳉鱼皮层泡的直径为10—40μm，周围由类脂构成，有含多糖的糖蛋白
与牙鲆卵不同的是，大菱鲆卵在胚盘皮层区有皮层小泡；
Unlike eggs of flounder, there are cortical alveoli in the cortex of eggs of turbot .
根据皮层小泡释放强度，可将皮层反应分为潜伏期、发展期、高潮期、衰退期四个时期。
According to the release intensity of the cortex vesicles, cortical reaction can be divided into the latent period, development period, climactic period, declining period.
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