鱼种以冬季放养为好。由于冬季气温和水温较低、鱼活动能力弱,鳞片紧凑,在打捕和运输放养中鱼不易受伤,鱼种的死亡率和发病率会大大降低。同时,冬放又能使鱼种及早疏散精养,适应环境,早摄食生长,延长生长周期,提高鱼产量,减少鱼种越冬并塘麻烦。在放养上要抓好以下几个技术要点: 一、鱼塘消毒:清整好的鱼塘,在放鱼种前10～15天,每亩用生石 Fish stocking in winter as well. Owing to the low winter temperatures and water temperatures, the low activity of fish and the tight scales, the fish are not easily injured in catching and transporting stockings, and the mortality and morbidity of species will be greatly reduced. At the same time, the winter release can make the fish species to be evacuated intensively and adapt to the environment, feed on early growth, prolong the growth cycle, increase the fish production and reduce the overwintering and pond troubles of the fish species. In the stocking should do a good job following several technical points: First, fish pond disinfection: a good fish ponds, fish 10 to 15 days before the release, per acre with stone