Oyster shells VS. clam shells

Discussion in 'Feeding & Watering Your Flock' started by 2manyRoosters, Nov 29, 2010.

  1. 2manyRoosters

    2manyRoosters Out Of The Brooder

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    Feb 20, 2008
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    I see lots of crushed Oyster shells for sale as a calcium supplement, but never see any crushed clam shells. Is there any difference? I thought they both had the same calcium content. Just wondering because I've got PLENTY of clamshells.
     
  2. Gray Ghost

    Gray Ghost Chillin' With My Peeps

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    Feb 13, 2010
    I'm interested in the answer too because I can get plenty of freshwater mussel shells where I live.

    I would think oyster / clam / mussel should all be the same in terms of calcium content, but I would like to hear from someone who is an expert.
     
  3. Luckytaz

    Luckytaz Chillin' With My Peeps

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    Mar 28, 2010
    Rogers, Mn.
    The oyster shells sold here, are actually crushed limestone.
     
  4. BrewedInNh

    BrewedInNh Chillin' With My Peeps

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    May 11, 2010
    Southern NH
    Quote:Mmmm... fine New England clams. [​IMG]


    Another easy source of calcium is to crush up their eggshells and feed it back to them. Just make sure the shells don't look like eggs anymore.
     
  5. RIBill

    RIBill Chillin' With My Peeps

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    Nov 7, 2010
    I would think hardness would be the main difference between clams an oysters. I don't see any reason you couldn't use clam shells. Mussels might be too sharp when crushed.
     

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