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Discussion in 'Incubating & Hatching Eggs' started by Henly11, Jan 28, 2013.

  1. Henly11

    Henly11 Out Of The Brooder

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    How do I know which eggs are fertilized?[​IMG]
     
  2. Impress

    Impress Chillin' With My Peeps

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    Jun 4, 2011
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    You have two ways to find out. Put them in an incubator and candle them in 7-10 days, or crack one open and check it for a bullseye.
     
  3. Sally Sunshine

    Sally Sunshine Cattywampus Angel <straightens Halo> Premium Member

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    Aug 23, 2012
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    My Coop
    agree......
    https://www.backyardchickens.com/a/hatching-eggs-101

    Is it Fertile or Infertile?


    To check the fertility, simply break an egg in a bowl. Find the white spot on the yolk. If you do not, use a spoon to gently flip the yolk over until you find it.
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    [​IMG]
    If the egg is fertile, the white mark will be nearly perfectly round and in the center it will be yellow;
    it will resemble a donut. If it is infertile, the white mark will not be very round, and in most cases, smaller than that of the fertile mark. If the egg is not fertile, the 'white mark' is called a "blastodisc". If the egg is fertile, the 'white mark' it is called a "blastoderm", and this means that cell division, because of fertilization, occurred.
    A link with more pics of fertile vs Non Eggs! https://www.backyardchickens.com/t/16008/how-to-tell-a-fertile-vs-infertile-egg-pictures
     

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