论文部分内容阅读
本试验利用饲养家鱼的“老”塘放养翘嘴红鲌小规格冬片鱼种,培育二冬龄鱼种。试验结果:放养规格为5～8cm/尾,放养密度在4500～6000尾/1000m2,采用培育水质和投喂粗蛋白含量在40%以上的膨化浮性配合饲料相结合的饲养管理办法,经过9个月的培育,翘嘴红鲌二冬龄鱼种的平均规格达100g/尾,平均成活率89.6%,平均单产480kg/1000m2以上,平均饲料系数0.81,平均净收入为5033元/1000m2。
In this experiment, the “old” ponds of feeding domestic fish were stocked with small size wintergreen red snapper species to breed two winter-age fingerlings. The results showed that the stocking standard was 5 ~ 8cm / tail and the stocking density was 4500 ~ 6000 / 1000m2. With the combination of raising water quality and puffing floating compound feed with the crude protein content over 40% The average monthly survival rate was 89.6%. The average yield was 480kg / 1000m2. The average feed coefficient was 0.81. The average net income was 5033 yuan / 1000m2.