Compared with the DR piglets, TB and XB piglets had lower levels of IL-2 at 1 and 10 days of age, IL-10 at 1 day of age, and IL-17 during 1–24 days of age, while had a higher level of IL-6 at 24 days of age (p < 0.05). The gene discussed is IL17A; the disease is tuberculosis.