While reproducing large breeds of any kind of animal, chickens in this case, keep in mind to select also for gentleness, as large roosters which are also aggressive can be a pain to deal with.

My roo seems to crow (or at least try to crow) the other day when i was sick and forgot to feed them (i feed them about 3 fistful feed for all four of them, roos and hens). The day after i got better (2 days i was sick) that particular roo doesn't try to crow anymore. So the question is, does limiting the food affects the sexual maturity for the Cornish x breeds? I want to make sure they reach their sexual maturity before confirming their breeding status.

If you breed a cornish cross to a cornish cross what do the chicks turn out like ?

No, they do not lay very large white egg. They lay medium size cream egg. I easily knew this video is bullshit after hearing it.