Figure 2

Histological cell counts (mean and individual values) in the epidermis/superficial dermis and the deep dermis of skin biopsies in Belgian Blue and Holstein–Friesian cattle at different time points after artificial infestation with Psoroptes ovis. The results are presented as number of eosinophils and mast cells per 10⁵ μm² and as area percent of CD3 + (T-cells) and CD20 + (B-cells). Statistical significance within breed was assumed at *p < 0.05, **p < 0.01, ***p < 0.001, and ****p < 0.0001; statistical significance between two breeds was assumed at ^#p < 0.0083, and ^##p < 0.0017. Only 8 BB cattle were included in the statistical analysis of the cell counts as from one animal missing values were obtained at 4wpi.