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为提高水库网箱养鱼的经济效益,本试验设计了养苹(满江红Azolla)、养鸡、养鱼的立体联养结构;以鲜苹喂鸡,鸡粪养鱼及肥水养苹,起到了综合利用的增产效果。选择卡州苹、复瓦苹二种绿苹交替使用,可使供伺季节延长为7~8个月;用“浮盆”培养绿苹每平方米全年可产27.28kg。肉鸡食用绿苹后增重速度快、成活率高、肉质佳。以鸡粪混合颗粒饲料养锦鲤可节约谷物饲料,成活率(97.73%)高于对照组(94.17%),尾增重(742克/尾)略低于对照组(75克/尾);但生产成本(2.81元/kg)较对照组(4.55元/kg)降低38%。
In order to improve the economic benefits of fish cage aquaculture, this experiment designed the three-dimensional structure of raising apple (Azolla Azolla), raising chickens, fish culture; Comprehensive utilization of the yield effect. Choosing Cappadocia and Polyvagina alternifed two kinds of green peppers, which can prolong the service season for 7-8 months. Cultivating green apple with “floating basin” can produce 27.28kg per square meter for the whole year. After eating green apple, the weight gain is fast, the survival rate is high, and the meat quality is good. The feeding of koi with chicken manure pellets could save cereal feed, the survival rate (97.73%) was higher than that of the control group (94.17%), the tail weight gain (742 g / tail) was slightly lower than that of the control group / Tail); but the production cost (2.81 yuan / kg) than the control group (4.55 yuan / kg) decreased by 38%.