misting the eggs during incubation?

Discussion in 'Ducks' started by jm93030, Jul 31, 2011.

  1. jm93030

    jm93030 Songster

    Jun 4, 2009
    How many of you guys mist the eggs during incubation?

    is it really important ?

    Does it make a diference?

    How many times a day?

    thank you all

  2. iamcuriositycat

    iamcuriositycat Songster

    Jul 30, 2009
    Charlotte, NC
    Misting is an attempt to mimic the natural conditions of a mama duck coming back to the nest after a bath. I don't do it usually, but Dave Holderread recommends it for optimal hatch rates, so I am willing to bet I could raise my rates even higher if I did.

    One thing to keep in mind though (also per Holderread): Misting has the SAME effect, in terms of air cell development, as LOWER humidity. It sounds counter-intuitive, so I feel like I really have to emphasize this. When you spritz the eggs, it is NOT the same as raising the humidity briefly--in fact, it's similar to LOWERING the humidity for about a day in terms of air cell effect. The reason for that is based in the molecular structure of water, specifically it's polarity (as I understand it--if someone understands this more clearly I would love to be corrected :p), i.e., the fact the water molecules are attracted to one another. So when you spritz an egg with water, the moisture inside is attracted to the moisture outside and passes through the shell to join its brethren and subsequently evaporate.

    As such, spritzing can sometimes be a useful tool toward the end of incubation if your air cells are not developing well and you can't lower the humidity any further. It's also useful if you live in such a humid environment (like a rain forest, lol) that you simply can't get the humidity low enough to develop the air cells effectively.

    Of course, attracting water through the shell is not the only thing spritzing does, and I'm sure if Holderread does it regularly there is a good reason for it. However, I am lazy and happy enough with my 85-95% hatch rates to not bother. [​IMG]
  3. jm93030

    jm93030 Songster

    Jun 4, 2009
    Quote:WOW Interesting , I will never think of the misting helping to reduce humidity inside the egg
  4. 4-H chicken mom

    4-H chicken mom Crowing

    Aug 3, 2007
    Oberlin, OH
    I do mist my duck eggs too. It works well for me. [​IMG]
  5. zekii

    zekii Songster

    Nov 1, 2010
    New Hampsha
    Doing some reading on this subject before I try hatching my first duck eggs...
    When do you start misting daily, and when do you stop ?

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