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秋末冬初水温逐渐下降,当水温降到10℃以下,鱼已不甚吃食,活动、代谢也逐渐减弱,这时,就要将鱼种进行并池越冬了。为使鱼种安全越冬,必须做好越冬前的准备工作和加强越冬期的饲养管理。越冬池应选在水质好,避风向阳,池底淤泥少,土质保水力强,渗漏少,面积2—5亩,水深最好2米以上的池塘。越冬池应预先灌满新水,并适当施用无机肥,使鱼种在适度的肥水中越冬。并池一般在11月到12月间,水温下降至8—10℃左右的晴暖的天气进行。并池时间不宜过早,也不应太迟,早了水温尚商,鱼类活动能力强、游泳活泼、耗氧量高,操作过程中由于鱼的跳跃,鱼体容易受伤,密集在越冬池中也容易缺氧。如果
Autumn late winter water temperature gradually decreased, when the water temperature dropped below 10 ℃, the fish have not eaten, activity, metabolism also gradually weakened, then, it is necessary to fish species and pool overwintering. In order to ensure the safety of fish species overwintering, we must prepare well before winter and strengthen the feeding and management during wintering period. Overwintering pool should be selected in good water quality, sheltered from the sun, less silt bottom, strong soil water retention, less leakage, an area of 2-5 acres, the best depth of 2 meters above the pond. Winter pool should be pre-filled with fresh water, and the proper application of inorganic fertilizers, so that the species of winter water in moderate water. And the pool is generally in November to December, the water temperature dropped to 8-10 ℃ or so sunny weather. And the pool time should not be too early, nor too late, early water Shang Shang, fish activity ability, active swimming, high oxygen consumption, the operation of the fish as a jump, the fish vulnerable, dense in the winter pool Is also easy to hypoxia. in case