搞好鱼塘冬季整修与消毒，是改善鱼塘环境条件，杀死病原体，减少鱼病发生，提高鱼类成活率及产量的重要措施。一、鱼塘整修“四改”法：1．改小塘为大塘，加宽塘埂或合并小塘，使水面宽大，溶氧充足，增加单位面积的放养量。2改浅水塘为深水塘。排干塘水，深挖并担走淤泥污物 Doing a good renovation and disinfection of fish ponds in winter is an important measure to improve the environmental conditions of ponds, kill pathogens, reduce the occurrence of fish diseases, and improve the survival rate and yield of fish. First, fish pond renovation “four changes” method: 1. Change small ponds for large ponds, widening ponds or ponds, widening the surface, adequate dissolved oxygen, increase the stocking per unit area. 2 to change the shallow pond reservoir. Drain the pond water, dig deep and carry the muddy dirt