Natural (Traditional) Cycle

 This is a very important biological question, and understanding it helps you plan breeding, replacement, and profitability in your poultry system.

Let’s break it down simply and scientifically.

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1. How Long Does a Hen Lay Eggs in One Cycle?

A hen does not lay forever without stopping. She lays in cycles called “laying cycles” or “clutches.”

Natural (traditional) cycle:

   •   A hen lays 5–15 eggs in a row

   •   Then stops for 1–3 weeks (broody/rest period)

   •   Then starts another cycle

This is common in:

   •   Local / indigenous chickens

   •   Free-range systems

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Commercial layers (modern breeds):

They are genetically selected to:

   •   Lay almost every day

   •   For 10–14 months continuously

   •   With very short or no breaks

This long cycle is called:

One commercial laying cycle = about 52–60 weeks

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2. How Many Cycles Does a Hen Have in Her Lifetime?

Biologically, a hen is born with all the eggs she will ever have (like humans).

In theory (natural life):

A hen can live:

   •   6–10 years

   •   And produce eggs in many small cycles

But in farming reality:

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Practical Farm Reality

Local / backyard hen:

   •   Productive for: 3–5 years

   •   Laying cycles per year: 4–6 cycles

   •   Eggs per year: 40–80 eggs

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Improved dual-purpose breeds:

(e.g. Rhode Island Red, Plymouth Rock)

   •   Productive for: 2–3 years

   •   Eggs per year: 180–250

   •   2–3 major cycles

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Commercial layer breeds:

(e.g. ISA Brown, Lohmann, Hy-Line)

   •   Peak production:

      •   From 20 weeks to 72–80 weeks of age

   •   That is one major long cycle

   •   Eggs per year: 280–330 eggs

After that:

   •   Egg size drops

   •   Shell quality drops

   •   Fertility drops

   •   Farmers usually cull or sell

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3. Lifetime Egg Cycles Summary

Hen Type Productive Years Major Cycles Total Lifetime Eggs

Local village hen 3–5 yrs 12–20 small cycles 150–300

Dual-purpose 2–3 yrs 3–5 cycles 400–600

Commercial layer 1.5–2 yrs 1 big cycle 300–500

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4. The Hidden Truth (Very Important)

A hen’s body is not designed to lay daily forever.

Commercial laying is biologically stressful.

That’s why:

   •   After 72–80 weeks:

      •   Reproductive organs age

      •   Calcium metabolism weakens

      •   Immune system drops

So even though she may still lay:

   •   It is not economical or healthy to keep her long.

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5. Golden Poultry Wisdom 🐔🥚

A hen has many eggs in her body,

but only a few good years to give them.

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Simple Direct Answers to Your Questions

Q1: How long does a hen lay eggs in one cycle?

   •   Local hen: 5–15 eggs per cycle

   •   Commercial hen: 10–14 months continuous

Q2: How many egg cycles in a lifetime?

   •   Local hen: 12–20 small cycles

   •   Dual-purpose: 3–5 cycles

   •   Commercial layer: 1 major cycle

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For Your Hatchery & Farm Planning (Practical Advice)

Since you are working with hatchery and production systems:

   •   Keep commercial layers up to 72–80 weeks

   •   Replace flock every 18–20 months

   •   Keep breeding hens no more than 2–3 years

   •   Keep cockerels no more than 18–24 months

That gives you:

   •   High fertility

   •   Strong chicks

   •   Maximum profit

   •   Minimum disease risk