Strange looking egg shell

Discussion in 'Chicken Behaviors and Egglaying' started by Linda C14, Nov 12, 2014.

  1. Linda C14

    Linda C14 Hatching

    Jan 7, 2012
    Hi Everybody,

    First time post on BYC for me and I have an egg question. The egg in the photo came from one of my 8 pet chickens. The shell was very thick and contained two yolks. I haven't seen this before with my girls. It happend a few days ago but since there hasn't been another so far.

    The girls are out and about in a large fenced yard during the day and are fed layer food and get scratch with oyster shell and mealworms mixed in as a treat daily.

    Do egigs like this just happens once in awhile or is it a sign/symptom of something going on with the chicken?

    Thank you for your time and any input you may have.

    Last edited: Nov 12, 2014
  2. sumi

    sumi Égalité Staff Member

    Jun 28, 2011
    Rep of Ireland

    Those corrugated egg shells can be caused by a number of things, from newcastle disease to a defective shell gland. See here for full list of causes:

    If your hens do not show any sign of disease and do not continue laying these I would not worry. It could just be a glitch in the hen's system. I recall finding one egg like this from my flock over the 8 years I've been keeping chickens. If they are not sick and do continue laying eggs like this I would not use any of their eggs for hatching as this can be hereditary.

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