大黄鱼室内育苗阶段是指受精卵孵化出苗—鱼苗出池下鱼排这一阶段，历时约３０～４０天。这一阶段的主要病害有３大类即：营养性疾病、寄生虫类疾病和细菌性疾病。本文就上述３大类疾病的症状、病因、流行情况及防治方法介绍如下：１营养性疾病１．１胀鳔病症状鱼苗大批量浮集 Large yellow croaker indoor nursery stage refers to the hatching of fertilized eggs hatch - fish fry fish under the pool this stage, which lasted about 30 to 40 days. There are three main types of diseases at this stage: nutritional diseases, parasitic diseases and bacterial diseases. This article on the three major types of disease symptoms, etiology, prevalence and prevention methods are as follows: 1 nutritional diseases 1.1 bulging symptoms of bulimia fry mass floats