冬季是放养鱼种的黄金季节。此时的鱼种壮,鱼鳞紧,适应力强,水温低,损伤小,成活率高。冬放鱼种能使鱼较早地适应新的生活环境,促进早春吃食,延长全年生长期,提高养鱼经济效益。 1.修塘消毒 要求鱼塘宜大,宜深。鱼种放养前10～15天排干池水,清除过多的淤泥,修整池埂,修补漏洞,平整池底,清除池边杂草,完善注排水系统,而后用生石灰、漂白粉等消毒处理。消毒时要选晴天进行。干法消毒按每亩池塘用生石灰50～80kg,池塘留积水深5～10cm,将生石灰均匀地撒入水中。带水消毒按每亩水深1m用生石灰120～150kg,撒布均匀,充分搅动。 Winter is the golden season for stocking fish species. At this time the fish species Zhuang, fish scales tight, strong adaptability, low water temperature, small damage, high survival rate. Winter fish species can make the fish adapt to the new living environment earlier, promote early spring eating, extend the annual growth period and raise the economic benefits of fish farming. 1. Xuntang disinfection ponds should be large, should be deep. 10 to 15 days before stocking stock draining water, remove excess sludge, repair ponds, repair loopholes, the formation of the bottom of the pool, clear weeds pools, improve the note drainage system, and then with lime, bleach and other disinfection. When disinfection to be sunny election. Dry disinfection per acre pond with quicklime 50 ~ 80kg, pond water depth of 5 ~ 10cm, the lime evenly into the water. Disinfection with water per acre depth of 1m with quicklime 120 ~ 150kg, spread evenly, stir well.