试验证明,要使鱼种安全越冬,必须做好以下几点。一要建好越冬池越冬池是鱼类冬季生活和活动的场所。越冬池条件的好坏直接影响鱼种越冬成活率。因此,良好的越冬池要求选在背风、向阳的地方,要求面积3～5亩,冰下不冻水层的水深2～4米,最浅不少于1.5～2米,底质要平坦,淤泥要少,最多不超过20厘米,无水草,水源 Tests show that, in order to make species safe winter, must do the following points. First, to build a wintering pool Winter pool is winter fish activities and activities of the place. The condition of wintering pond directly affects the survival rate of overwintering species. Therefore, a good wintering pond requires the selection of the leeward, sunny place, requiring an area of ​​3 to 5 acres, the depth of ice under the water layer of ice 2 to 4 meters, the most shallow not less than 1.5 to 2 meters, the substrate should be flat, Less sludge, up to no more than 20 cm, no grass, water