A.T. Hagan :
If a bird that can meet all of the above requirements still exists today I can't find them.
Honestly, I think some of the Delaware strains meet those requirements. They are great layers, though I can not attest to any specific number of eggs to expect. Some strains are broody, others not so much. I think the only time mine stop laying are when they molt. I just butchered several 22 wk old Delaware cockerels, and though I did not weigh them, I will say their processed weight was more than I had expected.
If a bird that can meet all of the above requirements still exists today I can't find them.
Honestly, I think some of the Delaware strains meet those requirements. They are great layers, though I can not attest to any specific number of eggs to expect. Some strains are broody, others not so much. I think the only time mine stop laying are when they molt. I just butchered several 22 wk old Delaware cockerels, and though I did not weigh them, I will say their processed weight was more than I had expected.