🥚 ISA Brown
Chickens · breed reference
The commercial brown layer of the world — Institut de Sélection Animale, 1978. Astonishing for two years, then reproductive wear catches up; a CROSS whose parent lines are a trade secret.
| Species | Chicken |
|---|---|
| Kept for | Eggs |
| Eggs per year | ~300 |
| First eggs | ~18 weeks |
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