鱼-鸭-菜生态种养模式的方法与效益

Methods and Benefit of Fish-duck-water spinach Eco-cultivating and Breeding Model

鱼、鸭、菜混养技术是一种效益较高的生态渔业模式。于2010年在浙江省丽水市莲都区城关镇水东村养鸭场进行了鱼、鸭、菜共育试验。结果表明,鱼池为鸭提供了清洁的活动场所,而鸭子排泄的粪便为养鱼提供了充足的肥源,水面的空心菜使水体清洁,提高溶氧,也使池塘美观;试验面积1.06 hm2,试验塘(面积为0.53 hm2)和对照塘(面积为0.53 hm2)净产值分别为61 480元和11 130元,投入产出比分别为1.00:1.46和1.00:1.26,鱼、鸭、菜混养的平均纯收入是单纯养鱼的5.5倍,经济效益显著。

The fish-duck-water spinach co-cultivation system is an ecological fishery mode with high benefit.In co-cultivation system,the fish pond provides a clean activity place for the ducks,meanwhile the duck supplies an adequate source of manure for the fish;And the water spinach not only make the water clean and increases the dissolved oxygen in pond,but also prettifies it.Two treatments,fish-duck-water spinach co-cultivation model（0.53 hm2） and only breeding fish（0.53 hm2）,were set in a duck farm in Shuiguan village,Chengguang town,Liandu district,Lishui county,Zhejiang province in 2010 to analyze the benefit of co-cultivation model.The pure output value of the co-cultivation pond and the control pond was 61 480 and 11 130 RMB respectively.The ratio of invest to output of them was 1.00∶1.46 and 1.00∶1.26 respectively.The results showed that the economic effect of the fish-duck-water spinach co-cultivation system was remarkable.