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在近几年的养殖过程中，往往会遇到三疣梭子蟹蜕壳不遂而停止生长或死亡的现象，其原因有以下几点：一是体质较差；二是水质较差；三是投喂饵料搭配不当；四是受敌害生物和同类的侵袭；五是蜕壳期间温度变化太大。针对上述原因和几年来的生产实践，笔者认为采取以下措施可有效?
In recent years, breeding process, often encounter Portunus crab molt desalination and stop the growth or death phenomenon, the reasons for the following: First, poor constitution; Second, poor water quality; Third, feeding Improper use of food; fourth attack by the enemy and similar organisms; five is the temperature during the molt change too much. For the above reasons and years of production practice, I believe that the following measures can be effective?