论文部分内容阅读
通过 15 3d的生产试验 ,结果表明池塘主养黄颡鱼在合理放养、科学管理的前提下 ,可获得高产高效。在放养规格为 4 5～ 6cm的黄颡鱼种 6 0 0 0尾 /亩 ,搭养 2 0～ 30尾 /kg鲢鱼种 6kg/亩、 2 0～ 30尾 /kg鳙鱼种 3kg/亩和 2～ 4尾 /kg草鱼鱼种 8kg/亩的试验池可获得较好效益。通过控制放养密度以及滤食性鱼类和主养鱼的比例可达到提高主养鱼类的成活率和总体经济效益的目的。
Through 15 days of production test, the results showed that the main pond catfish in reasonable stocking, scientific management under the premise of access to high yield and high efficiency. In the stocking range of 5 ~ 6cm of Catfish species 60000 / mu, breeding 20 ~ 30 / kg silver carp species 6kg / mu, 20 ~ 30 / kg catfish species 3kg / mu And 2 ~ 4 tail / kg grass carp species 8kg / mu of test ponds can get better benefits. By controlling the stocking density and the ratio of filter-feeders and main fish, the survival rate and overall economic benefits of main fish can be increased.