Discussion in 'Chicken Behaviors and Egglaying' started by PastorLarry, Oct 11, 2013.

  1. PastorLarry

    PastorLarry Out Of The Brooder

    Aug 21, 2013
    Tecumseh Oklahoma
    I have a chicken that just laid an egg without a shell. It wasn't laid in nest but on top of nesting box. What causing a chicken to lay an egg without a shell?
  2. sumi

    sumi Égalité Staff Member

    Jun 28, 2011
    Rep of Ireland
    - Immature shell gland (often seen with young layers that still needs to practice a bit);

    - Nutritional deficiencies. Usually lack of calcium and vitamins E, B12 and D as well as phosphorous and selenium in the hen's diet;

    - Certain diseases, such as Newcastle disease, infectious bronchitis, avian influenza, egg drop syndrome (only in certain countries, far as I know, it's not a problem in the USA);

    - Exposure to very high temperatures and extremely high or low humidity levels, especially if it's a sudden change in the weather;

    - An infestation of internal or external parasites, such as worms, mites or lice;

    - Stress or a fright prompting the hen to lay an egg prematurely, before the shell is formed;

    - Egg laying while molting;

    - Exposure to toxins, such as mold, fungi, bacteria.

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