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在鱼苗培育过程中,由于鱼苗个体较小,活动能力差以及饲养管理条件和环境因子的作用常受到一些病害与敌害的危害,直
In the fry breeding process, due to the small fry individuals, poor mobility and feeding and management conditions and the role of environmental factors are often affected by a number of diseases and predators harm