Hi Cottage Rose,
I've been breeding for about 20yrs now and have developed many new colour varieties in fowls and waterfowl and re-created a lot of breeds not found here in Australia.
The biggest problem with genetics is it all depends on how pure the line is that you are using. We assume they are quite pure but as with all science it's really best guess.
I have sebs and love them. Here we have mainly whites, a few grey and a few grey saddlebacks (females only). I'm working on the buff and blue at the moment but blue or buff geese of any breed are extremely rare here.
So where's the seb forum? I would definatley like to join.
The white sebs (also the embden) are a combination of the sex linked recessive spotting (saddleback) sp gene and the dominant dilution (dom white) Sd gene.
The White Chinese is autosomal recessive white (c).
Buff is recessive.
Blue is incompletely dominant , the same as andalusian blue in fowls.
The seb feather gene is incompletely dominant which is why there are both smotth breasted and frizzle breasted birds.
When I get a few minutes I'll do up bit of table for you showing the interaction of the genes in the sebs. I had a very nice seb gander a few years back that was tufted. Beautiful bird but he died during a heat wave last year. I basically had him as a pet. He was very friendly and being on a major highway I always had people stopping to ask what he was.
Hope this is a start for you.
