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在黄河故道区,选用相邻且面积相同2口池塘,分别投喂营养成分完全相同饲料,试验组投喂饲料添加了鱼用添加剂,进行池塘养殖草鱼对比试验,结果表明试验池塘草鱼成活率较对照塘高出7%,饲料系数较对照塘降低10%,鱼增重率较对照塘提高6.4%,同时,套养寡食性鱼类和肉食性鱼类的试验塘水质状况和水环境明显优于对照塘。
In the old course of the Yellow River, two adjacent ponds with the same area were selected and the same feed with the same nutrient content was respectively fed. The experimental group was fed with fish supplemented with additives to conduct comparative experiments on grass carp in ponds. The results showed that the survival rate of grass carp The control pond was 7% higher and the feed coefficient was 10% lower than that of the control pond. The rate of fish weight gain was 6.4% higher than that of the control pond. At the same time, the water quality of the experimental pond and the water environment of the experimental pond nesting with oligotrophic and carnivorous fish were significantly superior In the control pond.