Is this with Kathy's line of birds? I don't quite have a breeding program lined out for them yet for myself. I know they are still project birds (and beautiful ones at that) and I'm still not quite sure what I have in them yet but I am certainly excited to be working with them. I plan to keep a pure line of her birds but also make some crosses to my current line of Delawares. My Delawares aren't the best but I do like how fast they feather out and their egg laying ability. The size and frame on Kathy's line though is amazing!!This will by my first year "picking" birds to breed. I'm going to take it slowly.
At first, I'll leave all the females with the "father" male, then I'll cull the ones I don't want to breed into my laying coop, leaving just the "nicest" in to breed with him. Meanwhile, I'll pick the nicest new male to put with the two original mothers & IF I can set up a decent cockerel colony, then I can keep a few extra "new" males to evaluate later.
By nicest I was kinda thinking to breed the females based on three things ... 1) First to reach POL; 2) Best type (as far as I can tell; 3) Biggest.
For the males, I was hoping to keep at least two to work with ... 1) Best type; 2) Biggest.
I need a sustainable, dual-purpose, high-performance flock, so by selecting partially based on precociousness & size (very simple things to evaluate) I should make progress towards simple goals of economy. But that doesn't necessarily help the breed move closer to the SOP for type.
Picking out the "Best Type" breeders will be my challenge. I've got a lot to learn in evaluating a bird, and will have to come up with some point system or something to evaluate them ... weighing the importance of each attribute ...
Generally type, from my understanding will give you better results for laying/meat. A long bird with a deeper chest and wider body will have more room all the organs needed for good egg producion and a bigger frame for meat. (there are always exceptions to this though, I have a nice heavy/big "exhibition" bird that lays the smallest egg, it's so ridiculous it's not even funny). Something I recently read was not to necessarily pick the fastest maturing/dominant male out of your cockerels. Very often the comb and wattles develop early but their body stops growing, so you end up with a bird with a nice looking head but he's not fully grown out and his hatch mates out grow him in the long run. (paraphrased from Breeding for Success by Grant Brereton gbpoultry.com and I recommend his books as I have gotten some great pieces of information from them).
Another great read is Call of the Hen and can be found here for free: https://archive.org/details/cu31924003144031 I downloaded the PDF version (on the left) and printed it out so I can read it with no computer. It discusses looking at the head, evaluating the body with your hands to make determinations about laying ability and I blieve it goes over trap nesting which is really the only 100% way to know for sure how many eggs each bird is laying. And there is an old plymouth rock book https://ia700404.us.archive.org/0/items/cu31924003096397/cu31924003096397.pdf with some wonderful pieces of information in it too.
