19/08/2026
A question that turns up every hatching season, usually somewhere around 2am: "there's something hanging off my chick's belly β do I cut it off?"
No. Never cut it, never pull it.
That's the yolk sac, and the chick draws it in through the navel in the last hours of hatching. It's the food supply that carries it through the first day or two.
What to do instead:
β’ Leave the chick in the incubator, warm and quiet, and don't handle it β movement is what tears it
β’ Keep the tray clean, because an open navel is an easy way in for infection
β’ Give it time. Most sacs are drawn in within a few hours
β’ If it's still there the next day, or the navel looks wet and swollen, move that chick somewhere on its own β the others will peck at it
A sac that hasn't been absorbed often means the chick hatched a bit early, which usually points to an incubator running slightly warm. Worth checking your temperature before the next batch goes in.