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在以色列靠近特拉维夫的赫德累,一个面积为500平方米饲养着100只北京鸭和1200尾鱼的实验池塘,已产出了两批鸭和一批鱼。随着水中海藻数量增多,鸭和鱼的饲养量将分别增加到250只和3000尾。这是艾萨克·普拉维尼克博士的一项研究课题。主要是想通过鱼鸭共养,减少饲料浪费,同时获得双高产。鱼鸭共养的池塘构成为:鱼鸭放于同一个封闭的池塘里,饲喂区设在一个有很宽空隔的特制平台上,使剩余的颗粒料和鸭的排泄物掉入水中让鱼采食。普拉维尼克把平台
In Heddah, Israel, near Tel Aviv, two 500-square-meter experimental ponds that host 100 Pekin ducks and 1,200 fish have produced two batches of ducks and a batch of fish. As the amount of seaweed in the water increases, duck and fish stocks will increase to 250 and 3000, respectively. This is a research project of Dr. Isaac Prawivnik. Mainly want to raise fish and ducks together to reduce feed waste, while access to double high yield. Ponds raised by fish and ducks are constructed as follows: fish and ducks are placed in the same enclosed pond and the feeding area is set on a special platform with a wide space to allow the remaining pellets and duck excrement to fall into the water Fish feed. Plavnik put the platform