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PostPosted: Wed Dec 20, 2017 10:23 am 

Joined: Tue Dec 19, 2017 4:45 pm
Posts: 2
Hi All,

I have 12 eggs in a Janoel incubator (genuine item and not a copy) and want to know if anyone has any advice/tips on maintaining humidity levels when the incubator is unattended.

I understand the humidity needs to be between 55% and 60% for the first 18 days but if the incubator is unattended for a period of about 5 days, to what percentage should I have the humidity when I leave it so it can be ok when I get back after 5 days?

Any advice appreciated.

Thanks, Frank.

PostPosted: Tue Dec 26, 2017 11:36 pm 
Gallant Game
Gallant Game
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Joined: Wed Apr 07, 2010 10:49 pm
Posts: 477
Location: South Australia
To be honest, humidity is not that crucial. It is the total moisture lost from the eggs over the 21 days that counts. Many people provide too much humidity, but it depends on the incubator, the ventilation and the strength of the fan.

Humidity generated relates to the surface area exposed to evaporation, not how deep the water is. How deep the water is determines how long the water takes to evaporate (deeper water takes longer to run out). Fill up the water as deep as possible for the reading you are aiming for in order to last the longest time.

If the water runs dry in your absence you can either just not worry about it, or you can play catch-up by setting higher humidity for a few days to compensate.

If you candle an egg at day 18 when you stop turning, the air cell at the hatching end should be about one third of the egg and the dark part with the chick two thirds.

The most crucial time for humidity is lock-down time at hatching (the last 3 days). At this point you want a lot of humidity (at least 70% but up to about 85% won't hurt).

"Somewhere over the mountain..." (or was that "rainbow"?)

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