What's your incubator humidity level days 1-18 then 18-21?

Discussion in 'Incubating & Hatching Eggs' started by Nicole01, Aug 6, 2012.

  1. Nicole01

    Nicole01 Overrun With Chickens

    Mar 28, 2011
    What works best for humidity levels? I see so many different opinions, but what works the best?

    All my eggs have veins, but I'm afraid my humidity is too low at 40-50%.

    I set them in the bator on the 3rd. Today is day 4 and veins in every one(all 6). I hope my air cell is okay.
    Last edited: Aug 6, 2012
    1 person likes this.
  2. cochins1088

    cochins1088 Chillin' With My Peeps

    Jul 17, 2012
    Southern Minnesota
    Your humidity is not too low, I aim for about 40 - 45% and then for the last 3 day, 65%. And I usually have great hatch rates, most being around 95%.
  3. Nicole01

    Nicole01 Overrun With Chickens

    Mar 28, 2011
    Thank you! That's what I thought!
  4. Arielle

    Arielle Chicken Obsessed

    Feb 19, 2011
    Massachusetts, USA
    FYI-- Everyone needs to find a humidity the works in their own specific environment and incubator. TIme of year effects my humidity levels--humid summer weather brought a drop in hatching%. Because I was not looking at the eggs, the aircells actually.

    Development of the air cell to the proper size is the key. Humidity is managed to that goal. Do you have a diagram to compare to while candling?

    Search on the 'net using key words: air cells day 7,14, and 18 and you will find a number of diagrams. Pick one that is easy to print and understand for you. Some are black and white, others are colored.. Use it while candling. Hold the egg near it and compare.

    For candling--use any small LED flashlight. If you can see the veins, then that flash light is more than good enough to see the air cell development.

    Adjust the humidity to make the air cell grow faster, or to slow down development. THere is an optimal moisture loss for eggs; too much or too little , it won't hatch.

    By far, the biggest problem is not enough air cell development. You can stop the drying of the eggs but you can not speed up the loss of moisture very well once you are headed into lockdown.

    ANy questions? Let me know . . .
  5. WRVgirl

    WRVgirl Chillin' With My Peeps

    Jun 16, 2012
    Zone 8a
    I aim to keep mine between 30-45 day 1-18, my incubator does this on it's own as long as the built in water rings are filled.

    After day18, I throw in a warm, damp sponge and my humidity jumps to 70-75 [water rings filled and sponge combination]

    My hatch room maintains a steady temperature of 72-75, I keep the air vents closed in the room so only the return register is running. I have a thermometer/hygrometer in the room and the room itself stays between 50-60% humidity on it's own. Closing the registers has really helped me keep my temps from too much variation. I also keep the door closed in that room [it's my craft/chicken room] so there isn't a draft.

    As the PP said, it varies for everyone, mostly you'll just learn from trial and error...at least that's what I did.
  6. Nicole01

    Nicole01 Overrun With Chickens

    Mar 28, 2011
    Thank you! So far the air cells look good for day 7. :)
  7. stockedkitchen

    stockedkitchen Out Of The Brooder

    Jan 2, 2014
    My house humidity is high, between 70-90% most days, than good incubator levels. I have a forced air incubator should I add water or not?
  8. BrickWall Honey

    BrickWall Honey Chillin' With My Peeps

    Oct 24, 2013
    Accomac, Va.
    This is an old thread, however to answer your question no not add water if your currently at 70-90%.
  9. jjaazzy

    jjaazzy Chillin' With My Peeps

    Mar 2, 2013
    Davie, Fl
    I am in Florida and we had some really drippy rainy days when the inside the house meter read 97% and the incubator showed a lower humidity and I just thought it was because the incubator has the heat and fan running. But my incubator might be showing different numbers then it should. I guess I want to say double check whats going on in there
  10. fisher101

    fisher101 Chillin' With My Peeps

    Jan 25, 2014
    I had mine at 55% all the way through hatch and had a 95% hatch

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