In particular, a recessively inherited TYR-related form of the coat/skin color, oculocutaneous albinism type I (OMIA:000202–9913), and a SLC45A2-related form of coat color, albinism, oculocutaneous type IV (OMIA:001821–9913) have been reported in Brown Swiss (Schmutz et al. 2004; Rothammer et al. 2017; Bhati et al. 2020). The gene discussed is TYR; the disease is albinism.