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斗门地区罗氏沼虾育苗水源的理化性质基本上符合育苗水质标准 ,但随着水温的升高 ,细菌数量迅速增多。生产实践中育苗中后期出现疾病多、育苗成活率下降的现象 ,主要应与细菌的大量繁殖有关 ,而与育苗水环境的理化性质关系不大
Doumen area Macrobrachium nurturing water quality and physical and chemical properties of seedlings basically meet the water quality standards, but as the water temperature increases, the rapid increase in the number of bacteria. In practice, there are many diseases in middle and late stage of seedling emergence, and the phenomenon that the survival rate of seedling is declining is mainly related to the multiplication of bacteria, but not to the physical and chemical properties of seedling water environment