罗非鱼是热带鱼类,抗寒能力极差,当水温下降到14℃以下时就会逐渐死亡。因此,罗非鱼的越冬管理极其重要,综合我地养殖户的经验,应注意以下四点: 一、规格要整齐 罗非鱼一年多次繁殖,鱼苗入池时的规格如参差不齐,在吃食上必然出现以大欺小,使小者发育不良,甚至死亡。因此,鱼种入池时一定要经过筛选,按规格大小分别入池,以便管理, Tilapia, tropical fish, have very poor cold resistance and die gradually when the water temperature drops below 14 ° C. Therefore, the overwintering management of tilapia is extremely important. Based on the experience of our farmers, we should pay attention to the following four points: First, the specifications should be tidy Tilapia multiply more than a year, the specifications of fish fry as uneven, In eating, it is bound to appear to bully small and make small ones to develop poorly and even die. Therefore, the fish into the pool must go through the screening, according to the size of the size of the pool, in order to manage,