Has anyone in bred brother to sister from Mcmurrays cornish roasters?

[CNJ]

I was wondering if that line can be replicated. They say hybrids can't be bred through, but a new strain can be created by crossing two pure lines, so I think its possible to create a line from the roasters.
I have read a post where they crossed a dark Cornish with Mcmurry's roasters and got early maturing meat birds.

 

[cassie]

First of all, how would you know those particular chickens were brother and sister. Secondly, you can indeed breed the Cornish roasters but the offspring will not be like the parents.

 

[Molpet]

People who have done it says they get all kinds of sizes

 

[Molpet]

https://www.backyardchickens.com/threads/dwarf-genes-from-freedom-rangers.1439698/post-23864856
Good explanation of why different sizes in meat mutts

 

[CNJ]

Thanks all, I found a 2020 tread about this subject Cornish Rock Meat Bird Breeding Project
I just ordered some eggs from ebay, its a dark cornis rooster crossed with a white plymouth rock hen. I am going to cross this line with my Cornish roasters from Mcmurray. I think this should do for my ABCD hybrid meat birds. I probably can't replicate the parents, but they will last me a long time.

 

[nicalandia]

Your best bet is to use only the females because they dont carry any dwarfism, feed restrict them and use a dark cornish rooster on them.

 

[CNJ]

Your best bet is to use only the females because they dont carry any dwarfism, feed restrict them and use a dark cornish rooster on them.

I have an order for 10 cornish roasters, 3 female white plymouth rocks, 2 male white plymouth rocks, and 2 male dark cornish to be shipped April 5th and I have some dark cornish crossed with white plymouth rock hatching eggs coming next week.

I also, bred and hatched 3 white bresse crossed with a cuckoo lemon orpington and a white bresse crossed with a black australorp. The feather color on the first cross is white, and their legs went from yellow to blue within two weeks. I had only 2 chicks from the second cross, one with white feathers and blue legs, and one with black feathers; however, unlike regular australorps this one is pure black and was born with pitch black legs.

My bresse rooster line reach 5 lbs. dress weight at exactly 4 months old and the hen unlike other heritage breeds are filled in, but need 5 months for a decent meal.

I'll be working with these...................

I'll be processing 5 barbeziuex chickens next month, these take long to fill in. They are 4 months old and they look skinny in comparison to Bresse chickens. I'll decide what to do with a pair after roasting them.

 

[nicalandia]

Good, I have a few females Cobb 500 that I am feed restricting and a Rajah Murgh Cockerel(the dark cornish breed was based on their genetics)

 

[nicalandia]

The female cornishx are 7 weeks old and about 2 pounds or less

 

[CNJ]

I roasted a 5lb. Bresse rooster last week, the dark meat remind me of duck, it has a different texture than any chicken I have ate.......but they say barbeziuex taste better on an open fire and bresse taste better poached.