Cornish Rock Chicken

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Other common names: Cornish Rock Hybrid; Cornish Cross; Cornish X; Cornish-Rock; Rock-Cornish; Cornish x Rock hybrid; Broilers; Broiler Chicken; Cornish Game Hen

The basics:
The Cornish Rock Chicken is a cross breed from a Cornish Chicken male and a female white Plymouth Rock Chicken. Modern variants of the original Cornish Rock Hybrid Chicken are the most-used breed in the broiler and frier chicken meat industry. The "Cornish game hen" is a young immature Cornish Rock Chicken (less than 5 weeks of age), weighing not more than 2 pounds.

According to Wikipedia, "Broilers are often called "Rock-Cornish," referring to the adoption of a hybrid variety of chicken produced from a cross of male of a naturally double breasted Cornish strain and a female of a tall, large boned strain of white Plymouth Rocks. This first attempt at a hybrid meat breed was introduced in the 1930s and became dominant in the 1960s. The original cross was plagued by problems of low fertility, slow growth, and disease susceptibility, and modern broilers have gradually become very different from the Cornish x Rock hybrid.

Modern broilers are typically a third generation offspring (an F2 hybrid). The broiler's four grandparents come from four different strains, two of which produce the male parent line and two of which provide the female parent line, which are in turn mated to provide the broilers. The double cross protects the developer's unique genetics as strains cannot be reproduced from the broiler offspring. Additionally, the male lines and female lines are not bred for the same traits; for example the female line needs to be able to lay as many eggs as possible, since the number of eggs laid per hen influences the cost of broiler eggs and hence broiler chicks. Egg-laying ability is less important in the male line, while rooster fertility is very important.

The broiler is raised in a highly controlled environment along with thousands of other broiler chicks. It is given unrestricted access to a special diet of high protein feed delivered via an automated feeding system. This is combined with artificial lighting conditions to stimulate growth and thus the desired body weight is achieved in 4 - 8 weeks, depending on the approximate body weight required by the processing plant. After processing, the poultry is delivered as fresh or frozen chicken to the stores and supermarkets.

Types: Largefowl
Varieties (Single Comb): White
Uses: Meat
Weight: 4 - 5 lb market weight (4 - 8 weeks of age)
Personality: Calm and lazy
Broody: No
Preferred climate: Moderate
Handles confinement: Yes
Egg production: Fair (2/week)
Egg color: Brown
Egg size: Extra Large

What else you should know:
In a traditional flock Cornish Rocks can usually live a year or two. Afterwards, they succumb to various health concerns. Chicks will gorge themselves, so you may find rationing grain intake to be necessary.


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Cornish Rock Chicken Behavior Tip

Cornish Rock Chicken

From ShilohOhmes Mar 21 2015 12:38PM


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