Does an air sac mean the egg is fertile and developing?

Discussion in 'Incubating & Hatching Eggs' started by Hens_And_Chicks, Mar 21, 2009.

  1. Hens_And_Chicks

    Hens_And_Chicks Songster

    Feb 23, 2009
    We're only on day 3 but I looked at a few of the eggs today and can see an air sac on the end. Does that mean we have a chick starting to develop or do all eggs develop that sac while being incubated?
  2. speckledhen

    speckledhen Intentional Solitude

    No. Aircells will get larger as an egg gets older anyway. You should not candle this early--the embryo is too delicate. Wait till at least a week or ten days, then you'll be able to see something.

BackYard Chickens is proudly sponsored by: