Ability to lay and color bleaching.

Discussion in 'Chicken Behaviors and Egglaying' started by tazcat70, Oct 26, 2008.

  1. tazcat70

    tazcat70 I must be crazy!

    I gathered this information for a friend and thought that I would go ahead and post it here just in case someone else would like to see it.


    Characteristics Indicating Ability to Lay

    Character Layer Non-layer

    Comb and Wattles Large, bright red, glossy Small, dull, shriveled
    Head Neat, refined Beefy, weak
    Eye Bright, prominent Dull, sunken
    Eye ring Bleached Yellow tinted
    Beak Bleached Yellow
    Abdomen Deep, soft, pliable Shallow, tough, tight
    Pubic bones Flexible, wide apart Stiff, close together
    Vent Large, moist, bleached Small, dry, puckered, yellow


    As the hen produces eggs, she diverts yellow color from certain portions of her body and deposits it into the yolks of the eggs. Bleaching of various parts of the hen's body is a very good indicator of the time the hen has been in production. The loss of color is easily seen in yellow-skinned breeds such as the white leghorns and birds on diets containing sources of the coloring agents. In the white-skinned breeds the bleaching effect is less pronounced and more difficult to detect.

    Bleaching of Yellow Coloring
    Body Part Time After First Egg
    Vent 4-7 days
    Eye Ring 7-10 days
    Ear Lobes (white leghorn) 14-21 days
    Base of Beak 4-6 weeks
    Tip of Beak 6-8 weeks
    Bottom of Feet 8-10 weeks
    Front of Shanks 15-18 weeks
    Rear of Shanks 20-24 weeks
    Hock Joint about 24 weeks



    I got this information from:

    http://www.msstate.edu/dept/poultry/extcull.htm
     
  2. katrinag

    katrinag Chillin' With My Peeps

    That is very cool. Thanks for sharing.
     
  3. cmom

    cmom Hilltop Farm

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    Great info, Thanks!!! [​IMG] [​IMG] [​IMG]
     
  4. tazcat70

    tazcat70 I must be crazy!

    You are very welcome!

    [​IMG]
     

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