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Development of a Fertile Egg: From Infertility to Hatching in 21 Days

Explore the fascinating stages of a fertile egg's development in the embryonic period, from being infertile to the hatching of a chick in 21 days. Detailed diagrams and descriptions provide insights into each stage, including the growth of organs, feathers, and beak development. Witness the miraculous transformation from a simple egg to a newly hatched chick as it learns to use its muscles for the exciting journey ahead.

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Development of a Fertile Egg: From Infertility to Hatching in 21 Days

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  1. Blastoderm Yolk Diagram of a Fertile Unincubated Egg Chalazae Albumen (Egg White)

  2. Fertile Unincubated Egg

  3. Infertile Unincubated Egg

  4. 1 Day of Incubation

  5. PRESENCE OF THE DAY OLD EMBRYO Day 1As seen by candling FERTILE EGG ---- INFERTILE EGG ---

  6. 2ND DAYHEART BEGINS BEATING

  7. 3RD DAY

  8. 3RD DAY AS SEEN BY CANDLING

  9. 4TH DAY

  10. 5TH DAY • LIMBS BEGIN TO BEND FOR ELBOWS AND KNEES • FACE AND NASAL PARTS TAKE SHAPE

  11. DEAD EMBRYO 5TH DAY LIVE EMBRYO INFERTILE EGG

  12. 6TH DAY

  13. 7TH DAY • EGG TOOTH • BEAK • VOLUNTARY MOVEMENT

  14. 8TH DAY • TOES • FEET AND WINGS WELL DEVELOPED • FEATHER FOLLICLES BEGIN TO DEVELOP

  15. 9TH DAY EGG TOOTH ENLARGES

  16. 10TH DAY • DOWN FEATHERS IN TAIL AREA • TOES AND WING FINGERS

  17. 11TH DAY

  18. 12TH DAY MOST OF THE DEVELOPMENT HAS OCCURED

  19. 13TH DAY • COMB AND WATTLE APPEAR • RAPID GROWTH OCCURS NEXT 3 DAYS

  20. 14TH DAY HEAD TURNS TOWARDS BLUNT END OF THE EGG

  21. 15TH DAY

  22. 16TH DAY SCALES TOENAILS AND BEAK BECOME HARD

  23. 17TH DAY THE NECK AQUIRES A DOUBLE BEND SO THE HEAD IS UNDER THE RIGHT WING

  24. 18TH DAY

  25. 18TH DAY SEEN BY CANDLING AIR SAC ENLARGES TO NEARLY 1/3 THE EGG

  26. 19TH DAY

  27. 20TH DAY BEAK PIERCES THE AIR SAC LUNGS BEGIN TO FUNCTION

  28. 20TH DAY AS SEEN BY CANDLING BEAK PIERCES AIR SAC PEEPING BEGINS

  29. 21ST DAY THE CHICK “PIPS” AN OPENING IN THE LARGE END IN A COUNTER CLOCKWISE DIRECTION THE END CAP IS REMOVED

  30. CHICK HATCHING

  31. NEWLY HATCHED CHICK THE CHICK MUST LEARN TO USE ITS MUSCLES

  32. 1 DAY AFTER HATCH

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