Surface displayed swine IgG1 Fc enhanced baculovirus-mediated DsRed expression. A, B Fluorescent microscopic analysis of transduced IEC cells 36 h after transduction (×100). C, D Flow cytometry analysis of transduced cells. C Percentage of DsRed positive cells in IEC. D Mean fluorescence intensity (MFI) of DsRed positive IEC cells (**P < 0.05).