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What breeding(s) are used to create commercial "cornish x rocks"?

Discussion in 'Meat Birds ETC' started by BonnieC3, Oct 2, 2012.

  1. BonnieC3

    BonnieC3 Hatching

    Jul 5, 2011
    For a long time I believed what I call monster birds, the super fast growing chicks called "cornish x rocks" you can order were a cross between Standard White Cornish and Standard White Rock chickens. Then I was told it was a two step hybridization. Can anybody tell me the breedings (which breeds and which rooster-hen combinations) used to produce these fast growing hybrids? Thanks!
    Brahma Chicken5000 likes this.

  2. galanie

    galanie Treat Dispenser No More

    Aug 20, 2010
    That is a closely kept secret. No one knows for sure but we are sure it's not "just" certain breeds but rather certain strains of breeds.
    Brahma Chicken5000 likes this.
  3. Arielle

    Arielle Crowing

    Feb 19, 2011
    Massachusetts, USA
    Lines of each breed are carefully bred so that when crossed the result is a very good meat bird. I don't think genetic lines can be patented, might be wrong here, so the genetics are closely guarded. Usually four lines are involved, so I have read, making the original lines difficult to copy. If you look around on the first page of this meaties section, you will find a discussion on keeping cornishx longer than 8 weeks.
    Brahma Chicken5000 likes this.
  4. Cedarknob

    Cedarknob Chirping

    Feb 27, 2012
    Western IL
    This video will explain broiler breeding.

    By the way, the first highly successful commercial cross was done by the Van Tress brothers and was a Red Cornish over New Hampshire hens; they were the over-all winners of a federally funded "chicken of tomorrow" contest [trying to come up with the best chicken for the cheap meat needed to feed America] held in 1948. Back when I was a kid, and we were without vaccines or modern medications for chickens, New Hampshires were often a breed of choice due to their disease resistance.

    Last edited: Oct 3, 2012
    Brahma Chicken5000 likes this.
  5. BonnieC3

    BonnieC3 Hatching

    Jul 5, 2011
    Really interesting, thank you! Just wondering if anyone has tried a cross of which the name says: that is White Cornish on White Rock and if so, which breed was rooster and hen? I'm going to guess White Cornish rooster on White Rock hens. I'm planning on doing a little experimental breeding myself.
    Brahma Chicken5000 likes this.
  6. El Exorcisto

    El Exorcisto In the Brooder

    Jul 23, 2011
    The parent stock of modern meat birds are most likely very distant from any real breeds you could find commercially. Look into the white chantecler for a pure breed derived from cornish and white rocks, along with white wyandotte, leghorn, and RIR. I defnitely would never offer any discouraging words about experimentation with breeding and hybridization. That said I doubt you have the budget or land to even begin trying to make a commercially successful meat hybrid from the ground up. Making a perfect dual purpose, or even a bird bred almost exclusively to be caponized, is a solid purpose.
    Brahma Chicken5000 likes this.
  7. JohnsonHomestead

    JohnsonHomestead In the Brooder

    May 15, 2011
    Out in the sticks
    I don't know if I stumbled on anything or not, but I had some white hens I bought as "heavies", they were from ideal poultry, no name just stock numbered, had black spots. Anyway, I hatched some of the eggs that were fertilized by a "Production Red", and they all grew very fast, if they had been crossed with a cornish game, I think the results would have been amazing. well thats my 2 cents on this old thread, lol
    Brahma Chicken5000 likes this.

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