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在215hm2水库中设置面积为20m2投饵网箱,放养体长24～25cm匙吻鲟800尾,经过7个月的饲养,成活率达96%,收获匙吻鲟1454kg,单产72.7kg/m2,产值130860元,获利税86970元,平均4348.5元/m2,饵料系数为2,饵料成本占生产成本的11%;投入产出比为1∶3。
In the 215hm2 reservoir, an area of 20m2 feeding cage was set up and 800 stocking length of 240 ~ 25cm paddy sturgeons were stocked. After seven months of rearing, the survival rate reached 96%. The harvesting sturgeon 1454kg, yield 72.7kg / m2, output 130860 yuan, Profit tax 86970 yuan, an average of 4348.5 yuan / m2, bait coefficient of 2, bait cost accounting for 11% of production costs; input-output ratio of 1: 3.