I have personally never heard of this "satin" gene until now. I was researching this metallic sheen/look because a mare I got in late Oct. 2009 looks to have what that other girl is talking about. And yes...I know the difference between "shiny" coat and this "metallic" color that shows up on horses. It is almost like the same thing that some champagne horses have. My quarter horse mare is a really deep red bay color. But she has these, almost like sunburst color, hairs in her coat. I have had several bays before...none that have this! My boyfriend always tells me how amazing she looks in when the sun hits her coat. I have been around horses for more than half my life ...and have never witnessed this other than in some pictures of champagne horses and the Akhal Teke horses. She is purebred quarter horse and I have her pedigree to go back all the way to one of the founding horses Eclipse. The theory (what really does happen in rabbits that have it) is pretty convincing to me. Something about the hair shaft being clear...or hallow and letting the light reflect off of it better makes sense to me, as it only shows up in the sunlight. And if they are hallow then they can reflect the light that comes in and the color that shines out is what color the horse is (for example: my mare is a redder colored bay....so she reflects red). Its almost like thinking of a candle in a red glass holder...the light that comes out from the holder is red light. (Just a thought)
I'd like to hear from people that have witnessed this same occurrence. It is not just shiny! Unfortunately, cameras do not pic the color up. I guess if you had a $8,000 one it might, but that I do not have. Lol.
I have included a few pics of some horses that show it...note they are not only just the Akhal Teke breed. I know its crazy that pictures don't make it show up...but I promise its there! If you don't believe me .... I invite you my house to come and see it for yourself! Lol You definitely won't think I'm full of crap then hahahahaha!