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江苏省河蟹产业主干中的蟹苗和商品蟹养殖均已形成规模化生产,但做为承前启后的蟹种阶段始终无法达到规模化生产的水平。究其原因主要是由于蟹种培育风险较大,蟹种培育技术还不成熟,致使蟹种培育成活率平均只有5％-10％左右。本工作通过摸清池塘蟹种规模化强化培育阶段池塘主要水化学因子的周年变动规律,探索蟹种产业化培育技术和模式,寻找蟹种强化培育比较合适的水化学指标,为提高蟹种培育成活率提供依据。
Crabs and commercial crab farming in the crab industry backbone of Jiangsu Province have all formed large-scale production, but they have not been able to reach the level of large-scale production as a precautionary crab breeding stage. The reason is mainly due to the greater risk of crab breeding, crab breeding technology is not yet mature, resulting in the average survival rate of crab breeding only about 5% -10%. In order to improve the breeding of crab species, the paper studies the annual variation rules of main water chemical factors of ponds during the intensive cultivation of pond crabs, explores the technology and mode of industrialization cultivation of crabs, Survival rate to provide the basis.