very interesting @U_Stormcrow . I imagine the cross in the Cornish x can make quite a difference. The Cornish now usually used here commercially are harvested at 4 to 6 weeks (https://en.wikipedia.org/wiki/Broiler ) and it is hard to find information on never mind photos of the breeder stock...
I can't find the relevant bit of that very long thread; can you direct me to the right bit, or search term, because 'broiler' doesn't find your discussion of breeding one?
Modern broiler parent stock actually can't. A bird having trouble standing at 6 weeks old doesn't easily live long enough to make sperm and lay eggs. They have been bred into such monsters that they need a lot of human manipulation to reproduce now, including being starved most of the time...
I don't think anybody here (or indeed anywhere outside a laboratory) is talking about "force-feeding" their chickens cat food, nor in the kind of quantities required to cause methionine toxicity.
try incorporating some tangzhong or yudane in the mix; I added some to an otherwise 100% wholemeal loaf yesterday, and it turned out the nicest wholemeal I've made in a long time.
https://www.americastestkitchen.com/cooksillustrated/articles/6569-yudane-and-tangzhong
This is not a source; it is just copying what someone wrote online. Who wrote it, where, and when, are all required of a source of information.
Some of what you say is accurate, and some of it is not. Actually, even the bit you quote does not support what you claim. You've transformed a...