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以本人在浙江省舟山市水产研究所长峙试验场参加梭子蟹工厂化育苗管理时观察记录为参照依据,结合往年育苗资料总结分析整理而成。文中叙述了三疣梭子蟹人工繁殖亲蟹优选自然海区雌性梭子蟹培育为佳。受精卵孵化时胚胎心跳是膜内幼体放散预兆之一,这时心跳在每分钟180～230次之间。提倡膜内幼体放散在小水体中进行,然后选优入育苗池培育,有利于提高受精卵孵化率、幼体变态率和以后仔蟹蜕壳成活率。亲蟹培育提温快慢对幼体变态及仔蟹蜕壳关系极大,低温阶段升温适当可快、高温阶段升温要慢,每天提温幅度前期为0.5～1.0℃;中、后期为0.5℃。亲蟹投喂饵料要优质。
I am in Zhoushan City, Zhejiang Province Institute of Fisheries Changzhi test site to participate in the incubation of barracuda breeding plant management records observed as a reference, combined with previous years summary summary of nursery materials. The article describes the Portunus trituberculatus Artificial Propagation crab preferred natural sea cucumber female breeding better. Embryonic heartbeat of the fertilized egg hatching is one of the precursors of larvae in the membrane, when the heartbeat is between 180 and 230 times per minute. Advocating the dissemination of larvae in small bodies of water, and then selected into nursery ponds, is conducive to raising the hatching rate of fertilized eggs, larvae metamorphosis rate and survival rate of crab molting. Crab breeding raise temperature on the larvae metamorphosis and molting molt is very large, suitable for low-temperature phase heating can be fast, high-temperature phase heating slowly, the daily temperature range of 0.5 ~ 1.0 ℃; the late 0.5 ℃. Crab feed bait to high quality.