Figure 4.
Expression of inflammatory factors in the serum of quails in different experimental stages. (A) The expression levels of IL-1β in the serum. (B) The expression levels of TNF-α in the serum. (C) The expression levels of IL-6 in the serum. (D) The expression levels of IL-8 in the serum. (E) The expression levels of IL-18 in the serum. Data are expressed as mean ± SEM for 8 quails in each group. *P < 0.05, **P < 0.01 and ***P < 0.001 versus Con group.