Feeding butter with elevated content of trans-10, cis-12 conjugated linoleic acid to obese-prone rats impairs glucose and insulin tolerance

Table 3 Physical activity and oxygen uptake

		Lean Zucker (LF diet)	Fatty Zuck (LF diet)	Fatty Zucker (Lard diet)	Fatty Zucker (SARA diet)	Fatty Zucker (non-SARA diet)
Activity, beam breaks	light	2902 ± 190^a	1152 ± 189^b	1274 ± 72^b	855 ± 110^b	951 ± 84^b
	dark	4730 ± 780*^A	1827 ± 252^B	1572 ± 182^BC	854 ± 70^C	975 ± 68^C
VO₂, mL/hour/kg	light	21.6 ± 1.3^a	14.3 ± 0.9^bc	15.6 ± 0.4^b	13.0 ± 0.7^c	12.9 ± 0.6^c
	dark	26.7 ± 1.5*^A	16.2 ± 1.0^B	16.4 ± 0.4^B	13.3 ± 0.9^C	13.1 ± 0.6^C

Physical activity and oxygen uptake in Zucker rats fed various diets for 8 weeks. Data are presented as mean plus/minus standard error. n = 8-10 per group. Lower case letters are used to compare groups in the light phase, upper case letter are used to compare groups in the dark phase, and an asterisk denotes a significant difference between light and dark phases. Groups which share a letter are not statistically different. Statistical significance accepted at p < 0.05. LF low fat; VO ₂ oxygen uptake; SARA subacute rumen acidosis

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