Strain Sex N 2WK (g) 3WK (g) 6WK (g) 9WK (g) G26 (g) G29 (g) NA (cm) Tail (cm) HGC M 31 7.4 ± 0.2 10.1 ± 0.3 30.4 ± 0.4 36.4 ± 0.4 23.1 ± 0.3 29.0 ± 0.4 10.2 ± 0.05 8.0 ± 0.04 HG1 M 19 6.9 ± 0.3 9.6 ± 0.4 28.8 ± 0.6 34.7 ± 0.6 21.9 ± 0.5 27.8 ± 0.5 9.9 ± 0.07 7.8 ± 0.06 HG8 M 15 6.7 ± 0.4 9.2 ± 0.5 29.7 ± 0.8 35.2 ± 0.8 23.1 ± 0.6 28.5 ± 0.7 10.2 ± 0.09 7.9 ± 0.08 HG9 M 29 6.8 ± 0.2 8.8 ± 0.3 27.6 ± 0.5 34.7 ± 0.5 20.7 ± 0.4 27.9 ± 0.4 9.9 ± 0.05 7.8 ± 0.05 HG11 M 23 7.8 ± 0.3 11.1 ± 0.4 31.7 ± 0.6 38.3 ± 0.6 23.8 ± 0.5 30.4 ± 0.5 10.4 ± 0.07 8.4 ± 0.06 HG17 M 10 8.4 ± 0.4 11.4 ± 0.6 29.0 ± 0.9 34.0 ± 1.0 20.7 ± 0.7 25.7 ± 0.8 9.9 ± 0.11 7.5 ± 0.09 HGC F 23 7.4 ± 0.2 10.1 ± 0.3 23.3 ± 0.5 25.9 ± 0.5 15.9 ± 0.4 18.5 ± 0.4 9.6 ± 0.06 7.8 ± 0.05 HG1 F 31 6.3 ± 0.2 8.2 ± 0.4 21.1 ± 0.5 24.7 ± 0.6 14.8 ± 0.4 18.3 ± 0.5 9.4 ± 0.06 7.5 ± 0.05 HG8 F 22 6.5 ± 0.4 8.7 ± 0.5 23.1 ± 0.8 26.0 ± 0.8 16.5 ± 0.6 19.5 ± 0.7 9.6 ± 0.09 7.6 ± 0.08 HG9 F 27 7.5 ± 0.2 9.7 ± 0.3 22.6 ± 0.4 25.7 ± 0.5 15.1 ± 0.3 18.2 ± 0.4 9.3 ± 0.05 7.6 ± 0.05 HG11 F 24 7.2 ± 0.2 9.6 ± 0.3 22.1 ± 0.5 24.8 ± 0.5 14.8 ± 0.4 17.5 ± 0.5 9.3 ± 0.06 8.0 ± 0.05 HG17 F 17 8.4 ± 0.3 11.0 ± 0.4 22.0 ± 0.6 25.2 ± 0.7 13.6 ± 0.5 16.8 ± 0.5 9.3 ± 0.07 7.4 ± 0.06