No APBTs ever come merle , if they come that colour , they are not APBTs ,,,some mut has being added
I've heard first hand from dogmen in America of the odd merle popping up in some litters never heard of one being allowed to grow on though. If it didn't pop up from time to time in APBT lines why would they bother to explicitly ban the colour in the standard? It pops up in some lines but it's undesirable because it shows a link to the general purpose farm bulldogs used as backcrosses in the early days of the breed. It doesn't make dogs expressing the merle gene any less pure though, just an