一、试验条件1郾池塘省水产所9号塘,面积1郾5亩,池深1郾5米,淤泥深0郾3米。2郾水源机械抽花溪河水,水质较好。3郾鱼种从广东省顺德引进,规格2~3厘米。4郾饲料采用鲤鱼种料,粗蛋白含量38%。二、试验方法1郾池塘消毒在放鱼苗前15天进行清塘消毒,药物使用漂白粉,水深20厘米,漂白粉 First, the test conditions 1 郾 ponds Provincial Fisheries No. 9 ponds, an area of ​​1 郾 5 acres, pool depth 1 郾 5 meters, silt depth 0 郾 3 meters. 2 郾 water pumping machine Huaxi River water, water quality is better. 3 catfish species introduced from Shunde, Guangdong Province, specifications 2 to 3 cm. 4 郾 feed carp species, crude protein content of 38%. Second, the test method 1 郾 pond disinfection Shoot disinfection 15 days before putting the fish fry, drugs using bleach, water depth 20 cm, bleach