BBS is the same no matter what breed, so yes, Blue to Blue will produce 25% Black bl+/bl+, 50% Blue Bl/bl+, and 25% Splash Bl/Bl.
It's my understanding that Silkies are actually recessive white (I'm not sure if there are strains of dom. white Silkies or not), so their offspring should be half blue Bl/bl+ and half black bl+/bl+, 100% split to recessive white C+/c (meaning they carry the gene, but are not white). The easiest way to tell whether they are dom. or rec. white is to test cross them.
If they actually are dominant white, because it is dominant, they could be heterozygous I/i+ or homozygous I/I. If they are I/I homozygous, 100% of the offspring will be white and heterozygous I/i+. If they are heterozygous I/i+, half of the offspring will be white and heterozygous I/i+, 25% should be black, and 25% should be blue.
This is all assuming that the whites, whether dominant or recessive, are not carrying something that the white is hiding. I know genetics can be confusing, so I hope that clarifies it a little for you.![]()
It does. I only know about mine for sure from talking to silkie breeders. The breeder line of our silkies only breeds white and black. When she breeds white to white she gets white. I'm not sure of anything else from there though. Usually blue to white isn't done. But because they are dominant white, they will breed true colors. So our blues to white are fine. Meaning sq colors, and not some weird color mesh from the past HA!