Body composition, length, and tissue masses. A, Body weight in grams, (B) % fat mass, (C) % lean mass, and (D) % fluid mass from 3–12 months of age in bGH (dot-dash line) and WT littermates (solid line). E, Length (millimeters) in 12-month mice from tip of nose to anus and (F) tissue mass normalized to body weight and then to WT of 10 dissected tissues. All values are presented as the average within genotype ± SEM. *, Significant difference between genotype (P < .05); †, significant interaction between age and genotype (P < .05); ‡, significant difference with age (P < .05). BAT, brown adipose tissue; Ing, inguinal white adipose; Epi, epididymal white adipose; Retro, retroperitoneal white adipose; Mes, mesenteric white adipose.