My current breeding project is improving the Rhodebars to be the dual purpose birds they were supposed to be using standard bred RIR hens. There are two of us in the US working on this project, myself and another breeder in FL with the help of 2 geneticists.
Rhodebars are an autosexed, barred RIR. This is not meant to be a criticism of anyone else's project. If egg production is what you are looking for you can't beat a production red. But if you want a great carcass and better than average egg production, then the SOP reds can't be beat. I've tried many breeds over the years for both meat and eggs - i don't make that statement lightly.
I hate to bring up the SOP on this thread but remember, the SOP is a necessary baseline. It really is impossible not to consider the SOP when a breed is based on one.
Type, color, etc... it's all important or what we are creating is a whole new breed. That's what happened when the production Reds were created - a whole new breed. Useful and important but... they did a disservice to the heritage birds by not renaming the production Reds to something else.
If you want to create a new breed, I applaud you. I simply want to improve a breed in dire need of help.
My HRIR have production records for both eggs and meat... and they are bred to the standard. But their personal records - both egg laying and carcass quality, weight and flavor - are my baseline figures for analyzing the Rhodebars.
If you are going to improve you must keep production records, you can't simply guess. And you must have goals. I want my Rhodebars to have the type my RIR have as well as their carcass quality and egg production.
All of my F1 are on the ground and my F2 and BC1 will be in the bator soon.
So. .. Back to production...
Some RB have average egg production. Some are below average.
ALL have terrible type, lacking shape and width to ever produce a decent carcass.
Tracking and analyzing both on multiple excel spreadsheets is what we are working on right now. You have to establish a baseline. Tracking the HRIR has enabled me to use those figures for my baselines. Individual laying records is easy. Carcasses we are analyzing and weighing at 10 months.
We are now accumulating the RB data. It is awful. And I don't say that easily. I am blessed to have some of the few Rhodebars out there that are 100% autosexable 100% of the time and do not have feathered shanks or green legs or black breasts... or that crazy stick straight up in the air tail.
And their production simply isn't what it should be, their carcasses are terrible, their egg production is not as good as my HRIR.
So... record keeping. .. it's all about record keeping.
Each chick, tracked separately from hatch on with weekly and then monthly pics and stats. And. .. Lots of culling.
But here's the good news. .. When you have no where to go but up it is easy. What is difficult is tweaking an already great breed to make it any better. You can always change it, but can you improve it? ;-)
Ok... Back to lurking and learning. ..