论文部分内容阅读
一、生产条件鱼池面积0.2~1.0公顷,池深2.5米以上,水深2米以上。有进排水设施,能自流排灌,水流无死角,土质宽硬,有健全的供水、供申、供肥、供饵、运输等系统。水量充足,水温18~33℃,溶解氧每升在5毫克以上,酸碱度为中性或略偏碱性,透明度在40厘米以上,无污染。有增氧机械、抽水机械、饲料加工机械、运输机械。二、确立主养鱼,合理混养、密养和套养1、确立主养鱼主养鱼为一种、最多二种。常见的主养类型有革胡子鲶主养型、建鲤主养型、鲫鱼主养型、鲳鱼主养型和花白鲢主养型等。2、多品种规格密养、套养吨鱼池要求保持高效的安全载鱼量,充分配置各种资源。一次性放养品种5个以上,放养规格80%以上为大规格,放养密度666.7米~2为4000尾以上或200千克以士。放养品种有花鲢、白
First, the production conditions Yuchi area of 0.2 to 1.0 hectare, pool depth of 2.5 meters above the water depth of 2 meters or more. A drainage system, self-drainage and irrigation, water no dead ends, soil hardness, a sound water supply, for Shanghai, for fertilizer, for bait, transportation and other systems. Adequate water, water temperature 18 ~ 33 ℃, dissolved oxygen per liter in more than 5 mg, pH is neutral or slightly alkaline, transparency of 40 cm or more, no pollution. Aerobic machinery, pumping machinery, feed processing machinery, transport machinery. Second, the establishment of the main fish, reasonable polyculture, close up and nurturing 1, to establish the main fish as a main fish, up to two. Common main types of culture are the main type of leather bearded catfish, Jian carp breed main, crucian carp main type, mackerel main type and flower white silver carp and so on. 2, multi-species specifications of close-up, raising tons of fish ponds required to maintain efficient and efficient loading of fish, fully equipped with various resources. More than 5 one-time stocking varieties, stocking specifications for more than 80% of the specifications, stocking density of 666.7 m ~ 2 4000 or more or 200 kg of disabilities. Stocking varieties have silver carp, white