Question about humidity

Discussion in 'Incubating & Hatching Eggs' started by juliet3sierra, Jan 19, 2013.

  1. juliet3sierra

    juliet3sierra Hatching

    Jan 7, 2013
    I have a question about humidity. If the humidity is too low during the first 18 days but accurate the last three days, what happens?

  2. kellysmall87

    kellysmall87 Songster

    Chicks can either get stuck in the membrane as there wasn't enough moisture, or it can cause deformaties in the chick. See if they hatch and just watch out for lack of progress, they could hatch fine or maybe you will need to help out at the very last minute. Helping out a chick to hatch can be dangerous for the chick as the chick needs the struggle to flex its muscles to absorb the yolk into its abdomen which feeds it for the first day or so. Also, the chick needs the struggle of hatching to strengthen its legs, otherwise they could be 'splayed' and / or with curled toes.

    Hope that helps.x
  3. ChickenOfTheC

    ChickenOfTheC In the Brooder

    Nov 11, 2012
    What is the ideal humidity for incubating? What is the best way to check the humidity?
  4. Chick_In_The_Burbs

    Chick_In_The_Burbs Songster

    Jun 26, 2010
    Western Washington

    I bought a little $7 thermometer/hydrometer that I just add in. I was able to calibrate it so it is very accurate. :)

    Zoo Med manufactured mine but there is a lot of variety. They should be I the reptile section of your local pet store.
  5. kellysmall87

    kellysmall87 Songster

    yes, a hydrometer tells you the humidity. I got mine from ebay. I cant recall perfect humidity off by heart, but its something like 60% for first 18 days and then the last three days its up to something like 80%.. but if you search humidity on here someone will have written something about it. :)
  6. Egghead_Jr

    Egghead_Jr Crowing

    Oct 16, 2010
    NEK, VT
    The older reported 60% then 80% last three days of incubation has really been dissproven as the standard. Some adjust humidity based on egg weight loss or by monitoring the air sac growth via candling. These methods take more involvement and experience hatching. The majority of us incubate dryer than the old methods to great success. 35-40% humidity first 18 days then 55-60% for hatching is the new standard. Keep in mind that proper temperature is far more important, turning of eggs when stored and during incubation second and lastly humidity is a factor for hatching success.
  7. Chicky Tocks

    Chicky Tocks [IMG]emojione/assets/png/2666.png?v=2.2.7[/IMG] Ru

    Oct 20, 2008
    Benton, Arkansas
    I keep my eggs at 45-50% for the first 18 days and up it to 65% for the last three days. When the chicks start to hatch, you're humidity is going to soar to upwards of 80-90%. My first hatch, this freaked me out and I panicked. Don't do this.

  8. ChickenOfTheC

    ChickenOfTheC In the Brooder

    Nov 11, 2012
    Good to know. Thanks!
  9. BullChick

    BullChick Not who you think Premium Member

    Apr 17, 2012
    Coffee shop
    sallysunshine has an egg hatching 101 thread. Look her up, check "Pennsylvania unite" or PM her.
    Her recommendation is what I have found the norm. 48-50% the first 18, and 55-60% the last 3 days.
    She will even tell you how and when to help.
    1 person likes this.
  10. Sally Sunshine

    Sally Sunshine Cattywampus Angel <straightens Halo> Premium Member Project Manager

    Aug 23, 2012
    My Coop

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