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在温室中饲养平均规格为 11.0 3 g/只的美国小鳄龟 (Chelydraserpeneina ) ,水温变幅 2 3～ 3 0℃ ,投喂配合饲料。经 2 5 7d的饲养 ,平均规格达 10 82g/只 ,平均日增重量 4.167g ,平均日增重率 1.0 180 %。对各生长时段的日增重量分析 :前 110d为 1.72 g/d·i,111～ 2 2 0d为 5 .81g/d·i,2 2 1～ 2 5 7d为 6.5 4g/d·i。就个体规格而言 ,因 2 0 0g/i之前日增重量为 1.72 g ,平均日增重率RZ 为 1.0 2 64 % ;2 0 0～ 3 0 0g/i阶段分别为 5 .0 g和0 .964 1% ;3 0 0～ 5 0 0 g/i阶段分别为 5 .71g和 0 .9881% ;5 0 0～ 10 82 g/i阶段分别为6.3 2 g和 1.0 0 167%。
The average size of 11.0 3 g / Chelydraserpeneina was raised in the greenhouse, and the water temperature was varied from 23 ℃ to 30 ℃. After 25 days of breeding, the average specifications reached 10 82g / only, the average daily gain of 4.167g, the average daily rate of gain of 1.0 180%. The daily weight gain of each growing period was 1.72 g / d · i in the first 110 days, 5.81 g / d · i in 111 ~ 220d, and 6.54g / d · i in 2121 ~ 257d. In terms of individual specifications, the average daily weight gain RZ was 1.0264% due to an increase of 1.72 g before 200 g / i, and 5.0 g and 0 respectively .964 1%; 3 0 0 ~ 500 g / i were 5.71 g and 0 .881% respectively; and 5 0 0 ~ 10 82 g / i were 6.3 2 g and 1.0 0 167% respectively.