How to calculate hatch percentage?

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

  1. Godiva

    Godiva Songster

    900
    13
    191
    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

    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 Songster

    900
    13
    191
    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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