your culling the ones that aren't pure right?what type of genetics WOULD they carry if bred to say a Production Red or a Black Australorp hen?I'm in East TN
The SOP for the RIR is 8.5 lbs for cocks and 6.5 for hens. Rhodebars should be the same.
I am butchering the extra cockerels at 7-9 months simply because that's when it's convenient each fall.
It totally depends which generations you are asking about. The F1 hens who didn't make the cut for breeding on are single barred and carry 1 wheaten gene and one wildtype gene.
Also keep in mind that production Reds vary and have unpredictable genetics because of the other things crossed into them - especially leg horns from years ago.
One of the reasons out crossing for genetic improvement can take so long is because first you have to establish exactly what gene pairs you are starting with. With the Rhodebars in the US that had been pretty tough for some because the importer immediately began crossing other birds in without fully understanding all the genes. As a matter of fact they say this now right on their Web page. So... First you breed what you have to prove you have what you think you do. Then you begin to cross and may or may not realize there are other genes involved. Deep culling is necessary. But by deep culling that frequently just means song to the laying pen and freezer. Only a few of the best possibilities get to be perpetuated.