月龄 Month age | 参数 Parameter | 壳长 SL/mm | 壳高 SH/mm | 壳宽SW/mm | 体质量 Body weight/g |
3 | 平均值 ± 标准差 mean ± SD | 13.830 ± 4.250 | 7.700 ± 2.130 | 4.790 ± 1.460 | 0.420 ± 0.360 |
变异系数 % coefficient of variation | 0.310 | 0.280 | 0.300 | 0.860 | |
6 | 平均值 ± 标准差 mean ± SD | 33.210 ± 4.530 | 17.340 ± 2.080 | 11.500 ± 1.620 | 5.300 ± 1.990 |
变异系数 % coefficient of variation | 0.140 | 0.120 | 0.140 | 0.380 | |
24 | 平均值 ± 标准差 mean ± SD | 94.170 ± 8.500 | 46.030 ± 3.940 | 31.970 ± 3.760 | 99.050 ± 30.830 |
变异系数 % coefficient of variation | 0.090 | 0.090 | 0.120 | 0.310 |