EMERGENCY!!! Newly hatched duckling help!!

Take a look at the link I posted a few posts back. It's from a guy who breeds crested calls I think and he talks about how he breeds cresteds with non cresteds. This creates some offspring that carry the gene but don't display the phenotype.

I think the assumption has been made that the crested gene is dominant, when it's really incomplete dominant.

Hence my suggestion that you not rule out cresteds unless you'd had the ducks for three generations. If a parent of one of your drakes was a crested, there would be a 50/50 chance of him carrying the gene. I don't work with cresteds so I can't speculate on the chances of him carrying the gene and not displaying the trait, but it doesn't really matter I suppose.

So drake is struttin' around your yard with his incomplete dominant CR gene, mates with a female without the CR and creates a few CR/cr ducks and a few cr/cr ducks. Because of incomplete dominance not all the carriers (CR/cr) in this generation will display, but you would have the same 50/50 split of carriers/non-carriers as you did in grandpas offspring.
 
Hey guys, so almost 24 hours later and blobby duckling is still alive.
It is running around like crazy like a normal duckling, a little wobbly so it may have neurological issues, but ill take that as it comes.. Its still got the blob on the back of its head however the skin appears to have hardened slightly and has gone opaque, so it no longer looks like a blister. It has a little bit of a crest but the lump is still exposed.
Another duckling that hatched at the same time has got a definite tiny crest on its head. Any ideas as to how the crested gene can randomly occur in a clutch? Every single one of my ducks is from a different genetic line.
WOOO HOO that's great that he's still around...It's got to be in the background of the parents..
 

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