Egg internal pipped at day 23?

[Serb]

Hey all
So my buddy has a variety of birds at his house and he offered me guinea fowl eggs so gave me 23 eggs which i was happy with. So i got the eggs and i stuffed them under 3 broody hens. 15 days later i candled the eggs and 1 out of 23 eggs was fertile. So i was like ok they must be lacking in a Guinea cock but was happy i got atleast one fertile.

Now i candled the egg at day 23 and it already internal pipped? My question is: Why is it hatching so early? Do some keets just develop a lot faster than others?

Hatched guinea eggs in the past and all the eggs hatched at day 28

 

[R2elk]

Hey all
So my buddy has a variety of birds at his house and he offered me guinea fowl eggs so gave me 23 eggs which i was happy with. So i got the eggs and i stuffed them under 3 broody hens. 15 days later i candled the eggs and 1 out of 23 eggs was fertile. So i was like ok they must be lacking in a Guinea cock but was happy i got at least one fertile.

Now i candled the egg at day 23 and it already internal pipped? My question is: Why is it hatching so early? Do some keets just develop a lot faster than others?

Hatched guinea eggs in the past and all the eggs hatched at day 28

I had one chicken hen who always hatched all the guinea eggs I gave her on day 26. Another chicken who would hatch all the guinea eggs on day 28. In the incubator I have had the eggs hatch anywhere from day 25 to day 28.

 

[Serb]

Had geese hatch at day 25 so it's not all that strange to me but they hatch earlier usually if temps are too high.
Though a chicken wouldn't over heat eggs unless the temperature outside is hot which is not the case in Ireland. Not complaining since i prefer earlier hatches.

 

[R2elk]

Had geese hatch at day 25 so it's not all that strange to me but they hatch earlier usually if temps are too high.
Though a chicken wouldn't over heat eggs unless the temperature outside is hot which is not the case in Ireland. Not complaining since i prefer earlier hatches.

The hen that hatched her guinea eggs always on day 28 would spend a lot more time off of the nest than did the hen that always hatches her guinea eggs on day 26.