Brown eggs

Hybrid · France

Gallus gallus domesticus

ISA Brown

Beginner FriendlyHeat Tolerantstandarddocile

6.2

Eggs/Week

320/yr

large

Egg Size

5 lbs

Weight

4 sq ft

Space Needed

per bird

0.27 lbs

Feed/Day

per bird

rarely

Broodiness

Historical Origin

France · Hybrid

The ISA Brown is a commercial hybrid bred for one thing: maximum egg production. They consistently lay 300+ large brown eggs per year with a calm, easy-going temperament. Perfect for beginners who want reliable eggs without the fuss.

Temperament & Behavior

This breed is classified as docile with a noise level of quiet and poor foraging ability. Broodiness tendency: rarely.

Biological Reference

"Phenotypic analysis of Gallus gallus domesticus (ISA Brown) supports a metabolic feed efficiency of 0.27 lbs/day at a standard body mass of 5 lbs. Egg production frequency approximates 6.2 ova/week under optimal lighting conditions (14h photoperiod)."