duck eggs air cell and incubation period

[nklanza91]

Hi I was just wondering if the count of day one starts the moment you settle the eggs or 24 hours after that ?????also the air cells are a littler small on day 21-22 not sure??? any suggestions?? regards Nick

 

[CelticOaksFarm]

Day one is counted as follows:

If set early in the morning that is day one
If set later in the day, the following day is day 1


Small aircells late in incubation is normally from humidity being too high. The humidity in the incubator should be kept lower during incubation and raised for lockdown.

40% or lower during incubation
70% or higher during lockdown

Location, weather, and relative humidity are factors for figuring how to run your bator humidity.

 

[nklanza91]

thankyou , my humidity has been 60 , should I take all the water out until the 25th day?? can they still hatch with small air cells???I've been dripping water on th since day 10 , should I stop??thankyou very much for your help

 

[Ilovemyduckies]

Whether that day or the next day is day 1 depends on what time during the day you set them. If it is earlier, that day is day one. If it is later, the next day is day one.

The air cell starts out small and slowely gets bigger. Here's a link that might help you:

http://www.metzerfarms.com/Candling.cfm