Try contacting Duckopolis, Trent Smith. Located West of Edmonton. 780-892-3099.
I am sure he can help you find the answers you are looking for...Good luck.
I am sure he can help you find the answers you are looking for...Good luck.
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Yes, I know about the variations in Rouens, but you cannot get a blue Rouen from 2 regular grey parents. It is impossible. You can, however, get them from crossing a saxony and a grey Rouen. Could it be that the hen that died left some eggs that were hatched by another duck?
not true genes can mutate and create a sudden change.
Welshies to stop people from questioning you, go get a blood test done to test the genetics of your birds, your local universities will take samples from a vet. Also if you get the breakdown of the genes on paper you can find which gene changed if both parents are shown to be pure bred rouens.
Okay it was just a suggestion
I'm not trying to be rude either, but rather trying to educate.
What you are suggesting, Buff Goose Guy, would be SO highly unlikely. It would mean that the mutation would have to occur in one of the sex cells before dividing, the hen or drake with the mutation would have had to donate sex cells (eggs or sperm) from the time before and after the mutation (since not all of the offspring had it), and it would just happen to be the incompletely dominant blue gene mutation, out of the hundreds of thousands of possible genes.
Since the breeder has (or had) both blue runners and saxony ducks which carry the blue gene, I think that is a much more likely option. But I guess anything is possible.
Please share what blood test you are doing to determine the genotype of mallard derivative birds.
Specifically testing for what genetics?