Chicken Embryo Development (**Graphic photos**)

Ever wonder what’s going on inside the eggs as you wait the LONG 21 days until hatch day? Well, put away your LED flashlight and get out of that dark closet, here’s an up-close and totally AMAZING look at chicken embryo development from day 1 to 21. For more information about  embryo development and candling pictures, visit my blog post here.

*Photos by  the Purdue Research Institute.

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Hi, I have had an egg between my breast for the past two Weeks and when I put a flash light next to it, I can't see any growth. I do have huge breast, live in a very hot city, we keep getting triple digits here, and I only take it out when I shower. What am I doing wrong? Should I give up now?

Sunny in AZ

Thanks so much for posting these pictures 🙂 I have 20 eggs in my incubator and they are on day 13 and the pictures help to let me see what is going on in there 🙂

Emma Maiden Bayley

Hi Kathy, I have 6 eggs at day 18 under my broody. I also use your photo's as a guide to what's going on in the she'll. BRILLIANT point of reference!! Keep it up!!! Emma Bayley. England x

Sam Salisbury

Great pics, very informative. Thank you for sharing :-). The correct/updated link to the information about doing this at home is at:

Tnt Swift

This is amazing..I look at these pictures everyday.. I have 3 in my incubator we are on day 6.. and I compare these photos with my eggs to see how they're growing.. thank you Kathy keep up the good work

Richard M Schmitz
Getting eggs from a coworker who has chickens and a rooster, alas, we only have chickens. How will we know if they are fertile to start the incubation process? Is it a crap shoot on telling if any of the eggs are fertile to start with? Is there anything I should tell my coworker to do in collecting the eggs? She is going to give me two dozen so that my daughter can put 12 in an incubator and 12 under one of our chickens (hopefully we have a broody one by the time the eggs arrive) for a science… Read more »