Duck Interleukin-22: Identification and Expression Analysis in Riemerella anatipestifer Infection

Figure 4

Expression profiles of IL-22 in ducks infected with R. anatipestifer. Expression levels of IL-22 (a) and IL-17A (b) transcripts from the spleens and livers of ducks infected intramuscularly with CFUs of R. anatipestifer serotype 7. The spleens and livers of 2-week-old healthy ducks were aseptically sampled on days 1, 4, and 7 postinfection (dpi). Tissue samples were pooled, and total RNA was isolated for qRT-PCR. Gene expression levels were normalized with β-actin used as a reference gene and presented relative to the expression levels of uninfected and healthy controls (NC). These results represented one representative of 2 independent experiments. Results are presented as the values (). and . dpi: days postinfection; RA: R. anatipestifer-infected ducks.

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