Great answers to many questions...a must read

Discussion in 'Incubating & Hatching Eggs' started by Three Cedars Silkies, Jun 4, 2008.

  1. Three Cedars Silkies

    Three Cedars Silkies Overrun With Chickens

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    Apr 17, 2008
    Gainesville, Fl.
    I found this info at this website:

    http://chickscope.beckman.uiuc.edu/resources/egg_to_chick/procedures.html


    HOW THE CHICK EMERGES FROM THE SHELL

    The head of the chick develops at the large end of the egg. Between the 15th and 16th days, the chick orients itself so that its head is near the air cell at the large end of the egg. Not long before the chick is ready to attempt to make its way out of the shell its neck acquires a double bend so that its beak is under its right wing and pointed toward the air cell. About the 19th day the chick thrusts its head forward. Its beak quickly breaks through the inner shell membrane, and the chick's lungs begin to function. Complete breathing by the lungs usually does not occur until the 20th day of incubation.

    Using its egg tooth (a tiny, sharp, horny projection on the end of its beak), the chick pecks at the shell thousands of times. Finally, the young bird pips its way through the shell and begins to breathe air directly from the outside. After the chick has made a hole in the shell, it stops pipping for three to eight hours and rests. During this time, it is acclimating its lungs to the outside atmosphere. After the resting stage is completed, the second stage of pipping begins.

    The chick begins to turn slowly inside the egg. As it turns, usually counter-clockwise, the cutting edge of the chick tooth continues to chip away. In two to five hours, the chick has made about three quarters of a turn inside the egg. As the chick progresses in its movement around the shell, it begins pushing on the egg cap (large end). Squirming and struggling, the chick works feverishly for about 40 minutes pushing at the cap. Finally with a vigorous shove, the chick breaks free from the shell, still wet and panting.

    When the chick is freed completely from the shell, it lies still. Its energy has been virtually exhausted, and it is extremely tired. After a rest of some few minutes, the chick begins to rise to its feet and gain coordination of its muscles. Within a few days the egg tooth, its usefulness over, will disappear.


    I found this very useful and thought some of you may as well...
     
  2. lauralou

    lauralou Chillin' With My Peeps

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    Dec 10, 2007
    Central Virginia
    Interesting. Thanks for posting that.
     
  3. arlee453

    arlee453 Chillin' With My Peeps

    Aug 13, 2007
    near Charlotte NC
    that is a great explanation - thanks for posting it!
     
  4. Shrader

    Shrader Chillin' With My Peeps

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    Apr 7, 2007
    Los Angeles, CA
    Thanks for the great post.
     
  5. amyquilt

    amyquilt Serama Mama

    May 17, 2008
    Amarillo, TX
    Great post! Thanks!
     
  6. Eggseronious

    Eggseronious Chillin' With My Peeps

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    Mar 6, 2008
    East Tennessee
    Thanks for posting that, I read and saved it a couple weeks ago and its one of the best. The rest period after the pip of up to 8 hrs is very helpful, lots of people get in a big hurry and try to help. [​IMG]
     
    Last edited: Jun 4, 2008

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