Ive been told that silver base whites make for better whites. But is there a big notable difference between gold and silver based whites? What do you get with gold base whites?
Since silver is actually the color white it sounds logical to have silver (white) at the S-locus under recessive white at the C-locus, in case of leakage. Then white would leak thru in the areas turned white, by silver, instead of gold, if there was leakage. With dominant white (I) there is a better chance of leakage than with recessive white (c). Theoretically you should be able to produce white chickens with just silver (S) and blue (splash) (Bl), so starting there and adding both dominant white and recessive white should cover all bases.
Logically it then also seems to me that silver, rather than gold, should also be carried by lavender...at least if there is any chance of leakage. I don't think mine show leakage, but rather a straw color affects the feathers of some males like I've seen in whites and the silver variety. All are based on silver, so the problem isn't with the S-locus. There is some other genetic cause that needs attention. I doubt the root of the problem has to do with diet or sun, although they may magnify the condition.
I know I've read and repeated that good blacks with the beetle green sheen should be based on gold, but also question that now. Silver/gold is certainly important when the S-locus color(s) show, but if and when they are completely masked and don't affect the ground color they may not matter or even be detected without DNA or test mating. I'm just not sure if and when they really effect ground color.