Questions about very large air sac development

Discussion in 'Raising Baby Chicks' started by sdwhippets, Aug 25, 2014.

  1. sdwhippets

    sdwhippets In the Brooder

    Apr 9, 2013
    I've posted recently about a broody hen on eggs, we had one egg hatch yesterday. When I candled them last around what I thought was 17 days, the 6 eggs we had, the chick was pretty much filling up the egg with normal size air sacs in all. When I checked on the new chick a bit ago and the remaining eggs, I decided to just put a light up to the end of them to see if there was any internal pipping and one of the eggs has a HUGE air sac now? It wasn't like that a few days ago, it's taking up almost half the egg now? What happened? There is also one other that has a large air sac, not as large as the other but it's still much larger than what I think it should be. Can anyone tell me what happened, can I assume the chick in the one egg is dead if the air sac has suddenly taken up half the egg?

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