Table 9. Effect of dietary energy and crude protein levels on TBARS assay of longissimus muscles from growing-finishing pigs

Energy	ME 13.40 MJ/kg			ME 13.82 MJ/kg			SEM	p-value
CP (%)	High	Middle	Low	High	Middle	Low		ME	CP	M × C
TBARS (mgMA/kg)
Day 0	0.23	0.22	0.23	0.24	0.23	0.22	0.004	0.70	0.56	0.69
Day 5	0.24	0.22	0.21	0.21	0.22	0.21	0.004	0.21	0.44	0.53
Day 7	0.57	0.56	0.57	0.56	0.55	0.55	0.007	0.50	0.97	0.93

CP, crude protein; ME, metabolizable energy; SEM, standard error of the mean.