Breed Profile

Columbian Rock Chicken

American Poultry Association logoAPA 1910
Egg Shell Color
Brown
Eggs / Year~200–250
Egg ProductionGood
Egg SizeLarge
BroodinessSetter
Egg FertilityLow
Hen Weight~7.5 lbs
Rooster Weight~9.5 lbs
Mating Ratio1 : 9
Roost HeightMedium
OriginUnited States
Marek's VaccinatableYes