How do you determine if an egg is a double yolker?

Discussion in 'Incubating & Hatching Eggs' started by thebirdguy, Apr 12, 2011.

  1. thebirdguy

    thebirdguy Chillin' With My Peeps

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    Nov 22, 2010
    Idaho Falls
    I have some really big RIR eggs in the bator right now and tried candling them prior to setting to see if I could tell if they were double yolks or not.. couldn't really tell. If it was a dy, once they both started developing I would guess you could tell due to seeing two little dancers in there.. Has anyone been successful in determining if it is dy prior to developing?

    thanks!
     
  2. Hi! Maybe try a stronger light and a darker room for candling?
    I've never set a double yolk egg, so I'm not sure what you'd see if both yolks had developing embryos.
    I hope your eggs are just *jumbo* and not double yolk --- from what I've read, incubating double yolk eggs rarely ends well.
    Good luck!
    [​IMG]
    Lisa
     
  3. spiritdance

    spiritdance Chillin' With My Peeps

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    Dec 13, 2010
    I incubated a double yolker unintentionally once, and actually hatched one chick from it. The other was malformed. From the research I did at the time, it's very rare for even one chick to hatch, much less two, so I wouldn't set another one if I knew it beforehand. I couldn't tell it was a DY until I candled at day 9, then it was obvious.
     
  4. thebirdguy

    thebirdguy Chillin' With My Peeps

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    Nov 22, 2010
    Idaho Falls
    I use a homemade LED 450 lumen candler... It is awesome... I am assuming that none of these are double yolkers since I couldn't distinguish two yolks prior to setting.. I figure if there are ever two developing embryos that that would be obvious at that time... just wondered if you could see two yolks by candling prior to any development..
     
  5. ...just wondered if you could see two yolks by candling prior to any development..

    Hi! I've been able to see two distinct yolks in the double yolk eggs I've gotten. For some reason, I hardly ever get double yolk eggs (I candle most of the eggs laid here, whether for 'eating' or 'hatching').
    [​IMG]
    Lisa​
     

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