Day 12--Saturday, April 20th

Major Growth Developments

Scales appear on the lower legs.
The embryo continues to grow and move.
The ribs begin to ossify.

 

Information & Image from the University of Illinois website:http://chickscope.beckman.uiuc.edu/explore/embryology/

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  Day 11--Friday, April 19th
  Major Growth Developments
  

  The toe claws begin to curve downward.

  The bottom of the feet become padded.

  Feather germs on the back and tail appear as long, tapering cones.

  The beak begins to harden.

  The comb appears serrated.

  The embryo begins to draw calcium from the eggshell for its growing bones.

  
  

  

  Information & Image from the University of Illinois website:http://chickscope.beckman.uiuc.edu/explore/embryology/
  
  
  
  
  Day 10--Thursday, April 18th
  
  
  Major Growth Developments

Claws begin to form.

The comb is visible.

Flight feathers appear.

Feather tracts appear over the sternum.

Lower eyelids develop.

 

Information & Image from the University of Illinois website:http://chickscope.beckman.uiuc.edu/explore/embryology/

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