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进入冬季,随着温度逐渐下降,各种水产养殖品种逐渐由旺食转入少食、停食,直至进入冬眠阶段。当水温降至10℃左右时,要采取措施保证其安全越冬,现将几种常见水产养殖品种越冬管理要点综述如下。 一、鱼种池塘以面积1300～4000米~2、水深1.5～2米左右为宜,池面背风向阳,每667米~2放鱼种2万尾。在并塘前(水温10℃左右)一周内停止投饵,选择晴朗天气拉网锻炼两次,然后进行筛选、过数、并塘。要求分类单
Into the winter, with the gradual decline in temperature, a variety of aquaculture species gradually shift from the fast food Eat less, stop eating, until the hibernation stage. When the water temperature dropped to about 10 ℃, we must take measures to ensure its safety overwintering, the management of several common aquaculture species overwintering are summarized below. First, the fish pond area of ?? 1300 ~ 4000 m ~ 2, water depth of 1.5 to 2 meters is appropriate, pool lee sunny, every 667 meters ~ 2 fish species 20,000. In the pond and before (water temperature 10 ℃) to stop feeding within a week, select the sunny weather pull net exercise twice, and then screening, and the number of ponds. Requires taxonomy