罗非鱼、淡水白鲳具有生长快,适应性广,肉质鲜美,品质高档等特点,是适宜大面积养殖的热带经济鱼类。在北方地区需要利用温泉、地热水在温室或塑料大棚内越冬,水温低于20℃时常出现多种病害,造成大批死亡,导致养殖成活率低,经济效益差。笔者根据多年的鱼种越冬经验,将罗非鱼、淡水白鲳鱼种越冬期间 Tilapia, freshwater pomfret has the characteristics of fast growth, wide adaptability, delicious meat, high quality and so on, which is suitable for large-scale cultured tropical economic fish. In the northern region need to use hot springs, geothermal water in winter in the greenhouse or plastic greenhouse, the water temperature below 20 ℃ often appear a variety of diseases, resulting in a large number of deaths, resulting in low survival rate of breeding, poor economic efficiency. The author based on years of experience in the winter species, the tilapia, freshwater catfish species during wintering