Horses exhibiting the tobiano spotting are characterized by white, unpigmented areas with...plus
Tobiano is the most frequent paint pattern in horses. Horses exhibiting the tobiano spotting are characterized by white, unpigmented areas with distinct borders that cross the dorsal midline and include at least one if not all of the four legs. The amount of white spotting can vary from very small (penny-size) areas on the lower legs to large white areas covering the entire body. The Tobiano pattern is inherited as a dominant trait and horses with the genotype N/Tob and Tob/Tob develop the characteristic colour pattern.
3 - 5 days after arrival of the sample in the lab