The Tobiano pattern is characterised by large white patches with defined edges or sometimes with a lighter pigmented fringe. Often the head is coloured and white patches extend over the back to the other side.
The pattern is occurs in many breeds and is probably the most common.
Von Willebrand disease type 1 (VWD1) is a blood coagulation disorder. The Von Willebrand factor plays an important role in blood clotting. If the disease occurs, there is a deficiency of this factor or it is dysfunctional, which causes the affected animals to show symptoms such as intensive and persistent bleeding when injured (e.g. also after operations).
The disease (type 1) occurs in the Doberman. The inheritance is autosomal recessive.
Warmblood Fragile Foal Syndrome (WFFS) is a connective tissue disorder in warmbloods that leads to skin detachment. Affected foals die or have to be euthanized. The disease is inherited in an autosomal recessive manner.
Synonym: Ehlers-Danlos syndrome
White Spotting (previously called 'Dominant White') is a general name given to a large number of white spotting patterns caused by mutations in the KIT gene. 27 'W' mutations are currently known. There is a large amount of variability in the amount/pattern of white caused by each of the mutations (W1-W27). Most 'W' mutations are breed or line specific, having originated in one specific horse.