Table 1.

Results of the regression analyses performed on broiler V˙CO₂ (single and multiple-bird respirometry).

Protocol	y-variable	N	F	t	R2	P	intercept	slope	slope 95% CI
Single bird	log RMRsit	79	451.597	21.251	0.854	<0.001	1.287	0.770	0.697–0.842
	log RMRstand	79	528.237	22.983	0.873	<0.001	1.367	0.873	0.797–0.949
	RMRstand/RMRsit	79	11.275	3.358	0.128	0.001	1.098	0.098	0.040–0.156
Multiple birds	RMRsit	10	200.268	14.152	0.962	<0.001	18.072	9.152	4.965–13.337
	AMRinc	10	12.603	3.55	0.612	0.008	11.864	7.428	2.05–12.253
	AMR	10	169.225	13.009	0.955	<0.001	20.319	32.330	26.605–38.060
	log RMRsit	10	130.569	11.427	0.942	<0.001	1.449	0.696	0.55–0.837
	log AMRinc	10	20.702	4.55	0.721	0.002	1.295	0.444	0.219–0.669
	log AMR	10	226.692	15.056	0.966	<0.001	1.736	0.660	0.559–0.761
	AMRinc/AMR	10	8.261	2.874	0.508	0.021	0.444	−0.065	−0.118–0.013