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罗非鱼是一种优质的淡水养殖品种,在北方普通养法产量低、效益差,且罗非鱼属热带鱼类,在北方不能自然越冬,所以养者较少。为此我们进行了罗非鱼池塘高产养殖试验,取得了成功。现总结如下:1材料和方法1.1池塘与设施:采用我所的一口2亩池为试验池,可蓄水深2.0米,池底淤泥厚10—20cm。水源为地下水,水质良好。1.2鱼种投放:我们在6月28日从洛阳热电厂购进尼罗罗非鱼鱼种投放池塘。亩投放平均规格29克的罗非鱼3500尾。7月2日每亩投放规格250—300克的鲢鳙鱼300尾,鲢鳙鱼的比例为3:1。鱼种投放前用生石灰彻底清塘,鱼种投放时用3％的食盐水浸洗消毒。
Tilapia is a high-quality freshwater aquaculture species with low yield and poor efficiency in the common north of the country. Tilapia is a tropical fish that can not naturally wintering in the north, so it is rare to grow. To this end, we carried out high-yielding tilapia pond experiment and achieved success. Now summarized as follows: 1 Materials and methods 1.1 Ponds and facilities: I use a 2 acres of pool for the test pool, water depth 2.0 meters, the bottom of the mud thickness of 10-20cm. Water for groundwater, water quality is good. 1.2 Fish species distribution: On June 28, we purchased nile tilapia species from the Luoyang Thermal Power Plant and put it into the pond. Acres 3500 tails of tilapia with an average size of 29 grams. July 2 per acre put 250-300 grams of silver carp and bighead carp 300, silver carp and bighead carp ratio of 3: 1. Fish before throwing clear lime with clear lime, fish put 3% salt water immersion disinfection.