TABLE 2B.

Strain and body weight interaction are present in activity traits and EE.

Trait	Body mass			Sex			Strain			Strain*weight			Sex*weight
	F	p	${\mathrm{\eta }}_p^2$	F	p	${\mathrm{\eta }}_p^2$	F	p	${\mathrm{\eta }}_p^2$	F	p	${\mathrm{\eta }}_p^2$	F	p	${\mathrm{\eta }}_p^2$
Drinking	1.73	0.19	0.003	0.61	0.44	0,001	2.43	5.7E-05	0,107	1.841	0.0051	0.083	0.20	0.66	0.000
Feeding	0.08	0.78	0.000	6.97	0.09	0,012	2.45	4.5E-05	0,108	1.922	0.0028	0.087	10.32	0.0014	0.017
Fine movements	0.07	0.80	0.000	2.73	0.09	0,005	3.27	3.7E-08	0,136	2.469	3.9E-05	0.106	1.07	0.30	0.002
Amb. movements	0.01	0.91	0.000	16.18	6.5E-05	0,026	4.55	2.4E-13	0,179	3.020	3.4E-07	0.127	6.94	0.0086	0.011
Rearing	2.96	0.09	0.005	13.54	2.6E-4	0,022	4.65	9.3E-14	0,186	3.309	2.6E-08	0.140	3.53	0.06	0.006
RER	13.60	2.5E-4	0.022	0.01	0.93	0.000	1.84	0.0052	0.081	1.90	0.0033	0.084	0.61	0.43	0.001
EE	92.44	1.9E-20	0.13	7.90	0.0051	0.013	2.67	7.6E-06	0.115	2.41	6.7E-05	0.105	3.04	0.08	0.005
Cage temperature	0.37	0.54	0.001	1.98	0.16	0.003	2.76	3.3E-06	0.116	2.53	2.3E-05	0.108	5.00	0.026	0.008

Sex and weight were registered as covariates in the RM-ANCOVA. “p,” p-value; “F,” F-value; “η,” partial Eta squared. P-values < 0.05 are highlighted in bold.