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在小流域内利用林蛙越冬池养鱼是一项很有发展前途的高产养鱼方式。辽宁省林业科学研究院从1986年开始在新宾满族自治县北清村搞试验,取得了成功。以1989年为例,从5月中旬到10月初的145天,7亩水面共产鲜鱼3259公斤,总产值2.28万元,扣除费用,盈利1.29万元;投入产出比为1:1.95,经济效益十分可观。 生产试验中主要采取的几项技术措施是: 1.清塘消毒 水深1米的池塘,每亩用生石灰60—75公斤,先在排净水的池塘底部四周挖几个小坑,将石灰倒入坑内,加水化开后,不待冷却即用木锹将灰浆向四周均匀泼洒。清塘10天后,注入新水,
The use of frog in the small watershed overwintering pond fish culture is a promising high-yielding fish way. Liaoning Provincial Academy of Forestry began experimenting in Beiqing Village, Xinbin Manchu Autonomous County since 1986, and achieved success. In 1989, for example, from mid-May to early October 145 days, 7 acres of surface water 3259 kilograms of fresh fish, with a total output value of 22,800 yuan, net of fees, earnings of 12,900 yuan; input-output ratio of 1: 1.95, the economy Benefit is very substantial. Production tests are mainly taken several technical measures are: 1. Qingtang disinfection 1 meter deep ponds, with lime per acre 60-75 kg, the first drain in the pond around the bottom of the excavation several pits, the lime down Into the pit, add water to open, do not be cooled to use wood shovel to evenly sprinkle around the mortar. Qingtang 10 days after the injection of new water,