Originally Posted by NdAppy
Grulla is dun on black. "black dun" is another pointless term ( I see it used on young foals who people are hoping are grulla but are actually lacking the dun gene. It does get used elsewhere, but really describes nothing imo). Just like "sliver grulla." I won't get started on that one.
Dun on bay = bay dun
Dun on red = red dun.
OK I figured as much. SO its a gimick thing that its "a rare black grulla", to lure people into thinking their getting something rare?
You know so much about genetics! Is there any books or sites you can recommend? I'd like to learn more, :)