germinal disc size

Discussion in 'Incubating & Hatching Eggs' started by lazy gardener, Feb 27, 2015.

  1. lazy gardener

    lazy gardener True BYC Addict

    Nov 7, 2012
    Ok, here's a question for the chicken geeks of the world. I notice that when I check fertility, some of the germinal discs are quite large, while others are about 2/3 the size of the large ones. Any idea why? Is it possibly related to maturity of the disc, or strength of the embryo that would result from incubation? Related to defect in sperm or ova?

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