B Locus · Brown coat color · Chocolate locus · TYRP1 gene mutation · Braun-Färbung · b-Lokkus · b-Lokus · Chocolate · Liver locus
This genetic variant affects the TYRP1 gene, which controls the production of the dark pigment eumelanin in the skin and hair. Instead of producing black pigment, the dog's body produces a brown pigment, commonly known as chocolate or liver. This is a natural genetic variation of the integumentary (skin and coat) system rather than a disease.
From birth, affected dogs will display a brown coat along with brown noses, lips, and paw pads instead of black. This is a purely cosmetic trait that does not cause any health issues or physical symptoms.
No treatment is required or medically necessary, as this is a normal and healthy color variation. The associated treatment cost is 0 EUR.
Estimated range of typical treatment cost. Actual cost depends on severity, clinic and region.
More conditions affecting the Skin & coat.