Fig. 4.
Effect of Se deficiency on TNF-α, IL-2, IL-1β, IL-6, and IL-17 expression in the chicken bursa of Fabricius. a TNF-α expression. b IL-2 expression. c IL-1β expression. d IL-6 expression. e IL-17 expression. *P < 0.05 indicates significant differences between the control group and the L group at the same time point. Each value indicates the mean ± SD, n = 3