鱼—桑—鸡池塘内养鱼,塘四周种桑树,桑园内养鸡。鱼池淤泥及鸡粪用作桑树肥料,蚕蛹及桑叶喂鸡;蚕粪鸡粪喂鱼;使桑、鱼、鸡形成良好的生态循环。试验表明,每500公斤桑叶喂蚕,蚕粪喂鱼,可增加鱼产量25公斤,桑园内养20只鸡,年产鸡粪1200公斤,相当于给桑园施氮肥18公斤,磷肥17.5公斤。鸡—猪用饲料喂鸡,鸡粪发酵等 Fish - Mulberry - fish ponds, ponds around mulberry trees, mulberry chicken. Fish pond silt and chicken manure used as mulberry fertilizer, silkworm pupa and mulberry leaves to feed chicken; silkworm manure to feed fish; make mulberry, fish, chicken form a good ecological cycle. Experiments show that every 500 kilos of mulberry silkworm feeding silkworm manure can increase fish production 25 kilograms, mulberry 20 chickens, with an annual output of 1200 kg of chicken manure, the equivalent of 15 kg of nitrogen to mulberry, phosphate fertilizer 17.5 kg. Chicken - feed chicken feed chicken, chicken manure fermentation