Fig. 1

Distribution of 152 Lipizzan horses according to vitiligo-like depigmentation grade VIT (blue = grade 0; red = grade 0.5; green = grade 1; brown = grade 2; purple = grade 3) by age classes (class 6 = 4 to 6 years; class 8 = 7 to 8 years; class 10 = 9 to 10 years; class 12 = 11 to 12 years; class 14 = 13 to 14 years; class 18 = 15 to 18 years; class 22 = 19 to 22 years; class 30 = 23 to 34 years)