Fig. 6

The mRNA expression of intestinal inflammation status of NBW, CUG and NCUG piglets on 26 d. A The mRNA expression levels of TNF-α, IL-1β, IL-6 and IL-12 in the duodenum. B The mRNA expression levels of TNF-α, IL-1β, IL-6 and IL-12 in the jejunum. C The mRNA expression levels of TNF-α, IL-1β, IL-6 and IL-12 in the ileum. Dates are presented as means ± SEM (n = 4). NBW, normal birth weight. CUG, catch-up growth. NCUG, not catch-up growth. *P < 0.05; **P < 0.01