Originally Posted by dotknott
I haven't worked with crested ducks, but isn't there a population of ducks that carry the gene but don't have a crest?
I think that if you breed a crested (or crested carrier) with a non-crested you get a population that are carriers, but only ½ show the crest. I wouldn't rule it out right away unless you've had these ducks for 3 generations.
I hope you're not looking at a case of encephalocele. Sorry, I don't know what to say other than I hope you can make this little one comfortable until you can get a better idea of what's going on.
I'm hoping to get some idea of this in a couple of weeks....
I have a female, sitting on 11 eggs, due in less than 2 weeks. She was previously with 3 males (1 was crested), until the boys got too "uh-hum" for her, and I separated 2 of the males, including the crested one, from the other male/female pair. Before the separation, I hatched some of her eggs, and 3 hatched with crests, so I assumed they were all fathered by the same male. Now all of the eggs she is sitting on "should" be fertilized by the male that she is currently with, non-crested. But I am still curious to see if any that she hatches will be crested. Whether the gene is in their line, or their parents line. I guess I won't know positively either way, but I am paying attention to it.