She had not been getting grain up until about 3 weeks ago. I started giving about 1/2 lb of feed a day (just enought) to mix with some hoof supplements that I am giving her. I may start adding a had full of oats to make sure I keep the fiber content up. Except for that, she is out on grass 24/7.
I think it is a nice color, but I think she looks more healthy the other way.
I would get her on a good quality feed or hay--your pasture and current hay are probably not adequate to give off that rich shine/dapples. Oats won't help balance it out--I would try upping the grain (nothing too much, she's tubby ;) )or finding some really good quality hay.
I had a buckskin that changed colors too! Only he got darker. I bought him in the winter when he had a shaggy very light colored coat. In the spring as he was shedding out all of his lighter hairs came out first and for a while what was left were these darker long hairs (which I didn't realize he had so many of) making him kind of a smutty color. When he shed out? BEAUTIFUL dark gold buckskin! Faded a bit in the sun as the summer progressed. I sold him and they sent me a picture of him that winter that same beautiful dark gold color. But then I saw him in the summer at a show and he was so dark I would consider him a smutty buckskin! As far as I know they weren't feeding him any kind of supplements, just some grain and plenty of time in the pasture, which is what he got at our place. Weird.
I loe the color of your mare. And, I totally agre with the Healthy happy horse diet = dappling in the coat.
I just moved my gelding from Calif to nevada. I stopped giving him this particular suppliment my father had been giving him and I totally saw that the dapples stated to fad so I put him on Safe Choice and took out some of his alfalfa and replaced it with pasture grass a few times a week and grass hay. I have now noticed that his dapples are very apparent again...This is good. I had to make some changes in his diet because he is not working really hard! He was in a 40 x 40 with only a tiny amount of grass and on a lot of alfalfa...and no work...so alot of things were changed when he moved...But Now I see a big difference in his coat.
I think your mare looks really awesome with those dapples....Sharp!