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东安县鱼苗鱼种场为探索革胡子鲶越冬保种技术,于1986年冬在废沼气池中进行革胡子鲶越冬试验,获得良好效果。两个试验池面积分别为36和1.54平方米,水深分别为3.5和1.5米。1986年11月20日投放鱼种63尾,重13.4公斤。1987年4月28日出池63尾,重12.75公斤,越冬成活率为100％。而对照池为40.6平方米,水深1.23米的小水泥池,其底部砌一涵管用于排水,投放的600尾鱼种(重13.6公斤),则全部死亡。对试验过程中水温测定情况进行分析。如1986年12月19日为寒冷天气,气温
Dongan fish fry fish farm In order to explore the winter mustard catfish overwintering conservation technology, in the winter of 1986 in waste digesters leather catfish wintering test, with good results. The two test ponds were 36 and 1.54 square meters in area, with water depths of 3.5 and 1.5 meters, respectively. November 20, 1986 put 63 species of fish, weighing 13.4 kilograms. April 28, 1987 a pool of 63, weighing 12.75 kg, overwintering survival rate of 100%. The control pond is 40.6 square meters, a depth of 1.23 meters of small cement pool, the bottom of a culvert for laying drainage, put 600 species of fish (weight 13.6 kg), then all died. Analysis of water temperature during the test. As of December 19, 1986 for the cold weather, the temperature