The splashed white 2 (SW2) gene causes white markings. They can range from minor facial markings and socks to the white face, blue eyes, white legs and white belly of a typical boldly marked splash horse. It is rare but possible for SW2 horses to be deaf.

Chestnut splashed white horses generally have larger markings than bay/brown or black splashed white horses.

The SW2 version of splashed white is only found in pure and part-bred Paints and Quarter Horses.

It is possible (though very rare) for horses to carry two copies of SW2.

Our test for SW2 is available now.

Photo: BP Shadow Gunner (PHAA) from Five Mile Stud .