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Discussion in 'Meat Birds ETC' started by Rexbandit, Oct 12, 2011.
Ok I know that there part Cornish games but what else?? Can anyone tell me please
Well, as thier name would lead to.. Cornish x Rock... That means they originally were a cross between white cornish, and white rocks... However, anymore, these birds have been linebred for over 50 years, with nothing else injected into them, and they are the furthest from any cornish bird that a bird could ever be.
All the time, people are talking about how they know these birds have the cornish in them, and they want to go out and get cornish and make their own...
You CANNOT DO THAT.. Why? Because these birds have been selectively bred for generations.. and they look nothing like any of their "original" ancestors... They are simipily exactly the same as their parents... Big white meaty single combed birds. cornish are not single combed.
I WISH A MODERATOR WOULD PUT A STICKY AT THE TOP OF THIS MEAT BIRD SECTION CLEARLY STATING THAT CORNISH X CHICKENS SIMPILY HAVE NO CORNISH BLOOD IN THEM, OTHER THAN THE ORIGINAL STUFF.. SIMPILY YOU CANNOT TAKE A CORNISH AND BREED IT TO A WHITE ROCK AND MAKE YOUR OWN CORNISH X CHICKENS..
thank you to anybody who'll read this-- and until next time when the some person asks the same question... which will be in..... about 3 days.
Ok i just have a few problems with what you said. Firstly if there the same as there parents that would mean that the hatcheries are lying when they say they won't breed true. Secondly you said there isn't any cornish in them any more which cannot be true. If you take a cross say a half&half and cross it with another half&half of the same breeding there offspring will also be a half&half no matter how many times you do this 1 or 100 times the outcome will still be a half&half give that after 100 times you can selectively breed them to look like anything you basically want but theyll still be half&half. Thirdly you said no one can breed there own Cornishx which is basically saying the general public dost have the knowledge or ability to selectively breed there own birds and there's way to may breeders of show birds and there own strands of meat bires for that to be true.
Quote:I'm sorry but the said thing is absolutely true.
Your current commercial Cornish Cross is a hybrid chicken, and both of his parents are hybrid chickens, and the grandparents are hybrid chickens. The 4 grandparents are not the same "breed" of hybrid.
So, if you want to re-create the Cornish Cross at home, it will take you decades and cost a heck of a lot of money, because you will have to keep an awful lot of chickens for a lot of years.
Lots of people are trying to recreate a bird that is similar and nobody has done it yet.
If you want to try it, Rexbandit, go for it. Come back and let us know how it has worked for you.
(I suspect that the extra huge breast meat was probably a very lucky genetic mutation. That would be tricky to re-create.)
Once upon a time as previous posters have said those birds were a simple cross between White Cornish and White Plymouth Rock. But that was nigh on sixty years ago. Over those years the avian genetics companies have been steadily breeding their original birds by the thousands, selecting based on the qualities they are looking for, and refining those selections into carefully inbred separate breeding lines. Any one or even any two of which will not produce the Cornish X as we know them today. You must have all four grandparent lines to do that and they do not let those birds out.
After all these decades it would not matter much what breeds they original started with. There has been so much much breeding and selecting of literally millions of birds by now that no one who cannot match their resources or at least buy their genetics can recreate those birds.
Which is not to say there is not still room for folks to select meat birds based on the qualities they find to be important. There are some who are doing just that.
The 4 grandparent lines are exactly as I thought, but forgot to say... One line, or two, are specifically geared towards the maternal side, while the others are terminal, only used to recreate themselves...
It's when these lines are mated, they click, and the hybrid vigor effect goes ape shat crazy...
kfacresagain, the parent stock may have been line bred for 50 years but the offspring or cornish cross chicks are hybrids. Yes they do have cornish blood in them, it's just that they use special breeding stock that is NOT available to the general public.
They call the birds F2 hybrids but they are more like poly hybrids the way i see it. Anyway they cross 2 F1 hybrids to come up with the broiler chicks that we can buy from hatcheries.
Hybrids in other animals and even plants exhibit a phenomenon called hybrid vigor. This means that true hybrids often grow bigger and faster than either of the parents.
Hybrids don't breed true. This means that if you could inbreed the hatchery made broilers you would get inconsistent offspring. Some chickens would look more like white rocks, some more like cornish, some will show different traits from both parents.
You can inbreed hybrids and eventually come up with a consistent IBL or inbred line though. I've never heard of anybody doing this with broilers probably because artificial insemination may be needed. It might be an interesting project but would likely take a long time. Once finished the hybrid vigor would be gone and you would basically have a slow growing meat bird that probably can't reproduce on it's own and probably doesn't have the intelligence to forage on it's own. Still would be interesting to see the outcome. Of course each breeder would probably come up with something different due to personal choice and the resulting selection.