Humidity question.

Discussion in 'Incubating & Hatching Eggs' started by theredroosta, Feb 2, 2011.

  1. theredroosta

    theredroosta Chillin' With My Peeps

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    Oct 10, 2009
    Whats the point of the humidity the first 19-20 or so days of incubation? I only see a reason for it at hatch time when the chicks are hatching to prevent shrink wrap. Because out of curiosity I decided not to fill the wells what-so-ever and I am currently in the middle of my most successful hatch I've ever had. Any help is appreciated.
     
  2. gumbii

    gumbii Chillin' With My Peeps

    Oct 7, 2010
    bell gardens, ca
    Last edited: Feb 2, 2011
  3. debilorrah

    debilorrah The Great Guru of Yap Premium Member

    Incubating is climate specific. For example, I live in the desert and we have basically 8% relative humidity, and with the heater on, it is 0% in the bator. The yolk would stick with 0%, so I add water to bring it to about 20-30%, 40-55% for hatching. It all depends on your climate.
     
  4. Davaroo

    Davaroo Poultry Crank

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    Feb 4, 2007
    Leesville, SC
    That link should be required reading before anyone touches an incubator.
    I still have it in my files from years back.
     
  5. rickerra

    rickerra Chillin' With My Peeps

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    Jan 26, 2011
    Spokane, WA
    Quote:The egg is porous. It will either absorb humidity from the air around it (moist air) or release it's own internal moisture as humidity into the air around it (dryer air). This affects the air sac inside the developing egg. This is why humidity levels do play a role even before the egg is pipped.

    The above link is worth reading.

    Just because you didn't add any water in your bator doesn't mean you had no humidity. The humidity of the room where your incubator is running as it's drawn into the bator through the vents would give you some humidity in there. You just didn't need to supplement that base RH%.

    Good luck with your remaining hatch!

    Cheers!
     
    Last edited: Feb 3, 2011
  6. WhiteMountainsRanch

    WhiteMountainsRanch Chillin' With My Peeps

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    Jun 19, 2010
    Sandy Eggo, CA
    Quote:Why only 40-55% for hatching when I've read 65% is optimal? I have a hygrometer in my Eco 20...


    I keep getting conflicting info...
     
  7. Davaroo

    Davaroo Poultry Crank

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    Feb 4, 2007
    Leesville, SC
    Quote:Why only 40-55% for hatching when I've read 65% is optimal? I have a hygrometer in my Eco 20...


    I keep getting conflicting info...

    You gotta quit all that reading.

    65% is optimal in the lab. Think of a hen - she knows nothing of that. She has to work with what she has.

    Go here: https://www.backyardchickens.com/LC-DryIncubation.html

    Follow
    what it says.
     
  8. debilorrah

    debilorrah The Great Guru of Yap Premium Member

    Quote:Why only 40-55% for hatching when I've read 65% is optimal? I have a hygrometer in my Eco 20...


    I keep getting conflicting info...

    Because I live in an extremely dry climate and to shoot for more is suicide. I would LOVE to be able to reach 65%!!!!! I had a really bad hatch with ducks recently because of humidity here. I can hatch chicks no problem, but ducks cannot be hatched in my climate. Not possible.
     
  9. Davaroo

    Davaroo Poultry Crank

    5,518
    69
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    Feb 4, 2007
    Leesville, SC
    Quote:Why only 40-55% for hatching when I've read 65% is optimal? I have a hygrometer in my Eco 20...


    I keep getting conflicting info...

    Because I live in an extremely dry climate and to shoot for more is suicide. I would LOVE to be able to reach 65%!!!!! I had a really bad hatch with ducks recently because of humidity here. I can hatch chicks no problem, but ducks cannot be hatched in my climate. Not possible.

    Ive always gone for 40%-50% with good results.
     
  10. debilorrah

    debilorrah The Great Guru of Yap Premium Member

    Quote:Because I live in an extremely dry climate and to shoot for more is suicide. I would LOVE to be able to reach 65%!!!!! I had a really bad hatch with ducks recently because of humidity here. I can hatch chicks no problem, but ducks cannot be hatched in my climate. Not possible.

    Ive always gone for 40%-50% with good results.

    I struggle for that and have good hatches too!
     

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