Sexing eggs

Discussion in 'Incubating & Hatching Eggs' started by lbchickens9, Feb 28, 2013.

  1. lbchickens9

    lbchickens9 Out Of The Brooder

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    Is it possible to incubate eggs at a certain temperature to hatch hens vs roosters?
     
  2. DraigAthar

    DraigAthar Chillin' With My Peeps

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    Nope. The sex of the egg is determined before it is even laid. There is some evidence that females are preferentially killed during development by exposure to certain temperatures, but in terms of actual sex determination, incubation temperature has nothing to do with it. They're not reptiles.
     
  3. lbchickens9

    lbchickens9 Out Of The Brooder

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    Darn! Wish it were that simple.
     
  4. saladin

    saladin Chillin' With My Peeps

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    They may not be reptiles but they are very, very close cousins.

    For example, in the wild Turkey females are capable of laying self-fertile eggs when no males are present. Consequently, all the self-fertile eggs will hatch males only.

    By observation, older literature claimed that the first eggs laid in a season would be predominately male whereas later eggs in the season would be predominately females; thus, coming to the 50-50 split. I have generally found this to be the case as well.
     
  5. gimmie birdies

    gimmie birdies Overrun With Chickens

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    someone said fridge eggs only the females would hatch. I hatched 3 out of 7 I did wing and vent checks they look female, but I will know more as they age. I am also keeping track of another batch of fridge eggs I am hatching to see if being high in an egg (near the air cell) or lower in an egg makes a diff. also checking the size of the embryo in the egg it see if that is any diff.
     
  6. DraigAthar

    DraigAthar Chillin' With My Peeps

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    As an aside, don't you think that if there was a reliable and simple method for sexing eggs, commercial poultry would have discovered it long ago? 3 eggs do not make a statistically significant sample, your results are anecdotal. I did find a fascinating article about sexing eggs using PCR methods, specifically for studying sex ratio manipulation by the mother bird. I'll paste it here if you're interested.
     
  7. gimmie birdies

    gimmie birdies Overrun With Chickens

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    yes but maybe they didn't think about it, I am not trying to be Jonas Salk or anything just experimenting. I am a do-er, and don't listen to the don't-ers.
     
  8. Pele

    Pele Chillin' With My Peeps

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    I have hatched grocery store eggs, and I can vouch that the temperature does not affect the gender. I get just as many roos as I do with shipped eggs from breeders (IE too many). My most recent hatch from Whole Foods yeilded 3 roos and 1 female.
     
  9. DraigAthar

    DraigAthar Chillin' With My Peeps

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    [​IMG]
     
  10. gimmie birdies

    gimmie birdies Overrun With Chickens

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    I tried to go by egg shape once I picked out the most beautiful round egg, it was a greenish blue and yelded a barred roo.
     

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