Fig. 4

The intestinal mRNA and proteins expression associated with energy metabolism of NBW, CUG and NCUG piglets on 26 d. A Duodenal protein expression of P-AMPK/AMPK and mRNA expression of mitochondrial electron transport chain I, including NDUF A1, NDUF A6, NDUF A13 and NDUF B1. B Jejunal protein expression of P-AMPK/AMPK and mRNA expression of mitochondrial electron transport chain I, including NDUF A1, NDUF A6, NDUF A13 and NDUF B1. C Ileal protein expression of P-AMPK/AMPK and mRNA expression of mitochondrial electron transport chain I, including NDUF A1, NDUF A6, NDUF A13 and NDUF B1. Dates are presented as means ± SEM (n = 3 for protein expression; n = 4 for mRNA expression). NBW, normal birth weight. CUG, catch-up growth. NCUG, not catch-up growth. *P < 0.05; **P < 0.01