help plzzz?

[amirfarmer]

i want to know that as the hatching day comes near the air sac inside egg becomes LARGER or SMALLER...... actullay today was the 20 day of my broody hen and when i candled one egg i saw very small air sac ......is that normal???

 

[Egghead_Jr]

The air sac becomes larger. If you saw only a tiny air sac and all else was dark then the chick is fully developed. I'd not worry, it might just be pushing up on it or internally piped as it's hatch time.

 

[amirfarmer]

when it will hatch

 

[Egghead_Jr]

When will it hatch? It's hard to pinpoint. The 21st day is norm but from two days early to two days late is within reason even under a broody.

If your chicks are internally piping into the air sac, they get that far and rest as it's the space that provides air, they should be piping and hatching within the next day. Right on time. I'd leave them alone but bet if you listen close you can hear random peeping in the egg under the hen. It's louder and constant when they hatch.