Figure 9

The distribution of CD163 ⁺ macrophages in the nasal mucosa of pigs at different growth stages. A IHC staining for CD163⁺ macrophages in the nasal mucosa. Macrophage-specific CD163 protein was stained brown. Scale bars: 50 μm. B Quantification analysis of macrophages. The number of CD163⁺ macrophages in the rear part of the respiratory region from pigs at different growth stages was counted in five random fields (×10) from the four cross-sections. All data shown are the mean ± SD from three independent experiments. Statistical significance was obtained using one-way ANOVA. NS no significance, ***P < 0.001.