DabDab
Thinks the luddites had a point...
On the subject of passports - I'm not sure how easy it would be. I mean how far would you go? Would my bay horse just be described as bay or as 'black, agouti, sabino' as those are all the colour genes he has that are visible. If the latter then there are certain foals that would have a fair old genetic testing bill to pay before they could be passported.