Figure 2. Skin histological features abnormal in Xiang pigs with systemic wrinkle (WXP). Representative Haematoxylin and Eosin and Masson's trichrome-stained skin sections of WXP and XP. And scanning electron microscope to observed the collagen fiber structure of the dermis. Scale bars: 50 μm in (A, B) and 5 μm in (C).