罗非鱼进入越冬池后，极易患各种疾病影响生长。现将几种常见鱼病的防治方法介绍如下：１、胀肚病。症状：肚、腹膨大，肛门生殖孔突出，颜色微红，鳞易落，鳍易烂，病鱼浮于水面，肠内充满气体或水状物。体长６厘米左右的鱼苗染病较重，可造成大批死亡。防治：（１）将水温提 Tilapia into the winter pool, vulnerable to various diseases affect growth. Now several common methods of prevention and treatment of fish diseases are as follows: 1, inflation belly disease. Symptoms: belly, abdomen enlargement, anal reproductive prominence prominent, reddish color, scales easy to fall, the fin is easy to rot, sick fish floating in the water, the intestine is full of gas or water. Body length of about 6 cm fry heavier, can cause a large number of deaths. Prevention: (1) mention the water temperature