Single yolk twins?

Discussion in 'Incubating & Hatching Eggs' started by Athiena14, Jul 12, 2019 at 7:30 PM.

  1. Athiena14

    Athiena14 Songster

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    How often do new layers tend to have two blastoderms in a single yolk? I am incubating one of my new blue layers eggs and I swear I see two heart beats. I always candle on day 3 (dont ask why I love seeing the starting heart beats.) And I swear I see 2 heart beats.
     
  2. sylviethecochin

    sylviethecochin Free Ranging

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    Cool. Have you got a camera good enough to take pictures? I'd like to see that.

    As for rarity, I've looked at almost every egg I've cracked open for the past three years (I eat two to three for breakfast, most days) and have never seen two blastoderms.

    (And I usually candle on day three as well. Those heart beats are really cool.)
     
  3. Athiena14

    Athiena14 Songster

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    I dont at the moment I can try and take a pick but they never come out looking all that great
     
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  4. Athiena14

    Athiena14 Songster

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    I've had a few single yolk twins lately usually from ones I've ordered
     
  5. Athiena14

    Athiena14 Songster

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    Single yolk twin of ducklings I opened up
     
  6. ocap

    ocap Crowing

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    I recall seeing something about hatching a chick when the shell has been removed. I forget where the experimenter put the yolk, might have been a cup lined with saran wrap.
    Everything that I have seen on BYC says that the shell keeps twins from hatching, the chicks can't turn to brake the shell. My first thoughts are "a shell removed hatching system would work for twins".
     
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  7. Athiena14

    Athiena14 Songster

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    I would think that would work for a double yolk twin, but single yolks have less of a chance of surviving due to less food for the two of them for my understanding
     
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  8. sylviethecochin

    sylviethecochin Free Ranging

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    Not only that, but shells get more delicate towards the end of incubation because the chick absorbing the minerals out of the shell for food.

    And I really doubt saran wrap would work because the shell is porous so that the egg can absorb oxygen through it.
     
  9. ocap

    ocap Crowing

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    the plastic wrap lined the cup. the top was open for photography.
     
  10. Athiena14

    Athiena14 Songster

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    So at the moment I cannot get a good pic I will try again at day 6
     
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