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在面积 50m2 、水深 1.5m的池塘用体长 15± 0 .58cm、体重 4 5± 1.5g健康淡水白鲳 150尾对 2 3种饲料进行 30d选择性试验 ,动物性饲料组摄食率和选择率分别为 76.95± 1.2 7%、3 .35± 0 .19% , 全价颗粒料组为 4 8.85± 1.85%、2 .13± 0 .37% ,植物性饲料组为 32 .50± 2 .66%、1.4 1± 0 .2 5% ,结果表明白鲳摄食具有极显著的选择性。
In a pond with an area of 50m 2 and a depth of 1.5m, 150 fish of healthy freshwater whitefly were used for 30d selective test with 15 ± 0.58cm of body length and 45 ± 1.5g of healthy freshwater whitefowl. The feed intake and selectivity of the animal feed group Respectively 76.95 ± 1.2 7%, 3.35 ± 0.19%, the full-size pellet group was 4 8.85 ± 1.85%, 2.13 ± 0.37%, and the plant-based feed group was 32.5 ± 2 .66 %, 1.4 1 ± 0.52%, the results showed that the feeding of whitefly has a very significant selectivity.