I sometimes read about people taking some drastic measures when incubating Marans eggs (lower humidity, sanding the big end, etc.),
Cripes....I've never heard of that one.
I hope it's not case of famous last words here.....
I've never had any trouble with our Marans hatching.....they seem more vigorous hatchers than our orps.
We set & hatch mixed batches.
As much can be seen by watching the size of the airsac as the chick develops as by using a hygrometer. While I cannot think of a logical reason why it would happen, but the ambient humidity of the area seems to make a difference.
Candling marans eggs can be difficult. There is a reasonably accurate way that one can tell if an egg is developing from about day 3 or 4....even with Marans. It is a bit difficult to describe but here goes....on day 3 or 4 when candling an egg which is not developing, the egg just carries on looking like it did when one set it, but with a fertile developing egg the yolk changes. It gets darker about half way down from the top. It is so much easier to show than to describe....
Cripes....I've never heard of that one.

I hope it's not case of famous last words here.....


As much can be seen by watching the size of the airsac as the chick develops as by using a hygrometer. While I cannot think of a logical reason why it would happen, but the ambient humidity of the area seems to make a difference.
Candling marans eggs can be difficult. There is a reasonably accurate way that one can tell if an egg is developing from about day 3 or 4....even with Marans. It is a bit difficult to describe but here goes....on day 3 or 4 when candling an egg which is not developing, the egg just carries on looking like it did when one set it, but with a fertile developing egg the yolk changes. It gets darker about half way down from the top. It is so much easier to show than to describe....
