Originally Posted by Saddlebag
If your horse was a homozygous black he won't fade so he is carrying the genetics of other coat colors. I have a homo black that has been out basiclly all summer and remains black as coal.
That's a common myth- homozygosity of the extension allele doesn't determine whether or not a black horse will fade. There do seem to be two types of black: fading and non-fading black, but the genetic differences between them have not been identified.