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How to calculate hatch percentage?

Discussion in 'Incubating & Hatching Eggs' started by Godiva, Oct 16, 2007.

  1. Godiva

    Godiva Chillin' With My Peeps

    880
    1
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    May 17, 2007
    Colorado
    Do you take all the eggs you started out with? Or do you take the number of eggs just prior to hatch? I started out with 9 eggs. At first candling two were infertile, and one had died. We hatched all 6 that were left and all chicks are healthy and thriving. What would you consider this hatch rate to be? I want to keep records .... still learning all this stuff. [​IMG]
     
  2. speckledhen

    speckledhen Intentional Solitude Premium Member

    This link has some info on that. I do not count eggs that were infertile. I do count ones that died during incubation. If you count the infertiles, you are getting fertility rates, but if you remove those from the equation, you get your hatch rate.
    http://posc.tamu.edu/Extension publications/b6092.pdf
    6 divided by 7 gives you an 85% hatch rate, by that scenario, I think.
     
  3. Godiva

    Godiva Chillin' With My Peeps

    880
    1
    161
    May 17, 2007
    Colorado
    Thank you so much for that link and for your answer. I kind of thought that it shouldn't include the infertiles... I guess it's kind of obvious now that I think about it.
     

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