Fig. 6From: Untargeted metabolomics of the intestinal tract of DEV-infected ducksPCA results between the duodenumof the DEV infection and CK at different time periods. A1–A3 represent the comparison of DEV 66 h, 90 h, 114 h in positive ion mode with CK group; B1–B3 represent the comparison of DEV 66 h, 90 h, 114 h in negative ion mode with CK groupBack to article page