Is this just a coincidence?

Discussion in 'Incubating & Hatching Eggs' started by fowltemptress, Jan 21, 2008.

  1. fowltemptress

    fowltemptress Frugal Fan Club President

    Jan 20, 2008
    Last edited: Jan 17, 2010
  2. ksacres

    ksacres At Your Service

    Nov 16, 2007
    San Antonio TX
    I hatched out 3 EE eggs for a friend (my only 100% hatch!). They were all cockerals. But I really don't think you can tell what sex they are considering they are all supposed to be incubated at the same temp.
  3. 4-H chicken mom

    4-H chicken mom Crowing

    Aug 3, 2007
    Oberlin, OH
    Wouldn't that be sweet if you could tell what sex of a chick was just by looking at an egg? [​IMG]
  4. MissPrissy

    MissPrissy Crowing

    May 7, 2007
    Forks, Virginia
    I have read temps do have a cause in determining the sex when hatching eggs.

    In La. 'gator breeders control the sex of the eggs they hatch by the temps with a high %age of predictability.
    Last edited: Jan 21, 2008
  5. TheOLDNewChick

    TheOLDNewChick I'm an original

    Jun 12, 2007
    Tioga, Louisiana
    MissPrissy is right about the gators... I just never would've thought about that working with chickens.. Did he happen to say if it needed to be higher or lower for pullets?
  6. silkiechicken

    silkiechicken Staff PhD

    It is only true in some reptiles. Not birds. The sex of birds is determined by the chromosomes that mix from the hen and the rooster. They are determined when the egg and sperm meets.
  7. fowltemptress

    fowltemptress Frugal Fan Club President

    Jan 20, 2008
    Last edited: Jan 17, 2010
  8. ginasmarans

    ginasmarans Songster

    Jan 15, 2007
    West Tn
    I read that higher temps are rougher on female embryos and they may not survive to hatch. I don't think you can chnge the sex of the embryo by changing the temp. Sometimes I get more pullts than roos. I figure it's just a fluke, although for the past 2 Summers, from the chicks that hatched out in August, most of them were pullets.
  9. arlee453

    arlee453 Songster

    Aug 13, 2007
    near Charlotte NC
    As posted previously, incubation temps determining gender only works in some reptiles and amphibians, not chickens.

    The hen is the one that contributes the gender specific genes, unlike mammals, where the male determines gender.

    Cool, eh?

    If there was really an accurate way to determine gender hatch percentages from either incubation methods OR looking/testing an egg, there wouldn't be so many day-old chicks 'disposed' of by hatcheries when they are the 'wrong' gender to meet the sales demand.

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