Join Date: Aug 2010
Location: Perth, Western Australia
• Horses: 0
Nope, that is caused by something different - one of the white patterning (pinto) genes. While grey puts a "white blanket" over the horse's base colour, it leaves the skin grey or black. White markings, as you know, have pink skin underneath them. So what has happened in your horse's case is that the grey has turned him white, which means you can't see the edge of his white markings any more. However, since they had pink skin underneath, you can still see where they are.
Mods, grant me the serenity to see the opinions I cannot change, courage to change the ones that should change, and the wisdom to spot the trolls.