16/11/2025
How a chick is hatched
METHOD ONE
🥚 1. The hen lays an egg
Hens lay eggs whether or not a rooster (male chicken) is around.
If no rooster mates with her, the egg is unfertilized, meaning it will never develop into a chick — it’s just like the eggs you buy to eat.
🐓 2. The rooster mates with the hen
When a rooster mates with a hen, he transfers s***m into her body.
The s***m can fertilize the egg cell inside her before the eggshell forms.
Once fertilized, the hen lays that fertilized egg a day or so later.
🌡️ 3. The fertilized egg is kept warm (incubation)
For the chick to grow, the fertilized egg needs warmth (about 37–38°C / 99–100°F).
This can happen naturally if the hen sits on the eggs (brooding), or artificially in an incubator.
🐣 4. Development inside the egg
Inside the egg:
Day 1–3: The embryo starts forming — heart, eyes, and spine appear.
Day 4–10: Wings, legs, and beak start to grow.
Day 11–20: Feathers develop, and the chick fills most of the egg.
Day 21: The chick breaks the shell (pips) and hatches!
🐥 5. The chick hatches
It uses a small “tooth” on its beak (called the egg tooth) to crack the shell.
Once out, it dries off, fluffs up, and begins walking within hours.