@WVduckchick
Kind of along the same lines of the CAM and since I’m nerdy about biology, anatomy, dissection and such, do you know what all does this “after hatch” contain that sustained life for 3 weeks?
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Normal gunk leftover. I think it’s the stuff that doesn’t get wrapped in and absorbed by the chick. I see this more when the pointy end of the egg has more clear-ish area, and the veins don’t reach all the way out to the point.
I’ve also seen it said that it’s waste from the chick, like poop, but I’m not so sure about that.