Marginal zinc deficiency caused higher (p < 0.05) serum levels of inflammatory cytokines (IL-1β, TNF-α, and IL-6) and intestinal mRNAs expression of inflammatory cytokines (IL-1β, TNF-α, and IL-6) in the dZn + ETEC group compared with the Zn + ETEC group, though no significant differences (p > 0.05) were found between the dZn and Zn groups (Figure 6a–f). The gene discussed is TNF; the disease is Zinc deficiency.