Table 1.

Body length, bone mineral content, and body composition in male C57BL/6J mice housed at 20, 22, or 26°C from 3 wks to 6 or 12 wks of age (N=8/group)

	6 wks of age						9 wks of age						12 wks of age
	20°C (cool)		22°C (control)		26°C (warm)		20°C (cool)		22°C (control)		26°C (warm)		20°C (cool)		22°C (control)		26°C (warm)
	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	ptemp 6 wks	ptemp 9 wks	ptemp 12 wks
Femur lengtd (mm)	14.2	0.10	14.2	0.40	14.0	0.40	N/A		N/A		N/A		15.5	0.8	15.6	0.2	15.6	0.1	NS	NS	NS
Tail length (mm)	69.9*	3.4	73.4*	2.8	75.8	2.3	75.8*	2.1	76.4	1.6	78.5	2.6	75.0*	2.9	78.0	4.2	81.6	2.9	<0.0001	0.041	0.004
BMC (g)	0.309	0.022	0.310	0.023	0.310	0.016	0.384	0.034	0.392	0.022	0.388	0.018	0.413	0.036	0.441	0.065	0.421	0.014	NS	NS	NS
Lean mass (g)	15.99	0.99	16.58	1.31	16.13	1.22	17.52	1.41	18.24	1.43	17.79	1.05	18.58	1.38	19.15	1.33	19.21	0.95	NS	NS	NS