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Humidity Levels in Styrofoam Incubators

Discussion in 'Incubating & Hatching Eggs' started by latebloomer, Feb 20, 2011.

  1. latebloomer

    latebloomer Chillin' With My Peeps

    Feb 10, 2011
    green mountain state
    i was just reading another post that said
    humidity levels should be kept lower in styrofoam incubators
    is that correct?

    i have a hovabator 1602N and have the humidity in the fifties
    is that too high?

    i read that for the first 20 days the humidity should be 58-60 percent
    then raise it to 65-70 percent for lockdown
    this is from the u minnesota extension website
    they're not calling out any different readings
    depending on what material the incubator is made of

    the instructions that came with the incubator don't call out
    a specific humidity level

    what are other folks with 1602N's shooting for in terms of humidity levels?

    this is a great thread but doesn't say anything about if there
    are different desired humidity levels based on the composition
    of the incubator: https://www.backyardchickens.com/forum/viewtopic.php?id=438720&p=14
     
    Last edited: Feb 20, 2011
  2. rebel yell

    rebel yell Chillin' With My Peeps

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    Jun 27, 2010
    Alabama
    I have an older havabator which I think is this same model, I run mine at 25-35% & on day 18 I raise it to 65-75%.
     
  3. happyhens44

    happyhens44 BroodyAddict

    Apr 25, 2010
    Northern WI
    I run mine 25%-40 %

    then

    60%- 70
     
  4. aprophet

    aprophet Chillin' With My Peeps

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    Jan 12, 2010
    chesapeake Va.
    Quote:
     
  5. latebloomer

    latebloomer Chillin' With My Peeps

    Feb 10, 2011
    green mountain state
    the answers here show a pretty large range of humidity levels

    is this something i should worry about?
     
  6. happyhens44

    happyhens44 BroodyAddict

    Apr 25, 2010
    Northern WI
    Quote:personally id drop it (Atleast) 10%
     
  7. latebloomer

    latebloomer Chillin' With My Peeps

    Feb 10, 2011
    green mountain state
    if i take off the two red vent covers
    on the top of the unit
    will the humidity drop?

    it's day three and i'm running about 55%
     
  8. aprophet

    aprophet Chillin' With My Peeps

    3,799
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    Jan 12, 2010
    chesapeake Va.
    most of the hatches I have I leave one red plug out the whole hatch for a good exchange of air. I just keep enough of the water wells full to give me 50-60% RH ,again I hatch mostly quail with an occasional chicken hatch I also hatch the eggs upright in egg cartons during lock down
     
  9. dee34491

    dee34491 Out Of The Brooder

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    Oct 2, 2014
    Minnesota
    I had good Luck At 55 then if it dropped 5 or raised five I was safe. Hatch rate 100 o/o Good luck!
     
  10. AmyLynn2374

    AmyLynn2374 Humidity Queen

    14,925
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    Oct 11, 2014
    Gouverneur, NY
    I use a Little giant styro bator. I switched to the dry incubation method and my bator holds about 40% dry and then I up mine to 75% at lockdown for the remainder. I personally feel 60% for the first 17 days is too high. To really tell though you need to check the air cells on the eggs. That is the best judge for knowing if you need to decrease or increase your humidity. As long as the air cells are growing at the right rate, your humidity is good, If your air cells are small for their amount of gestation days you need to decrease the humidity. If you have overly large air cells for the gestation day then you need to increase your humidity. I also leave my plugs out for the whole hatch.
     

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