How long can hatching eggs last


In the Brooder
Nov 20, 2020
Good morning I was wondering if anyone knew how many days hatching eggs can last without going bad or the hatch rate becoming zero percent.


Broody Magician
Premium Feather Member
12 Years
May 3, 2009
New Jersey
A lot depends on how they are stored. A general rule of thumb frequently quoted is 10 days. Think how long it can take a hen to build a clutch - sometimes far longer than that. Long, long ago before we knew any better I had one incubator. I would save eggs, and store them in an earthen cellar - 50 to 60 % humidity and around 60 degrees F - turned daily. I sometimes held eggs as long as 21 days (time it took to hatch a batch and disinfect the incubator) and generally had hatches in the 80% range. No question that fresher is better, but older eggs handled properly can still be viable. Another factor is the strength/viability of the parent stock involved.

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