I do hen-reared, brooder-reared and hand-reared every year with genetics accounted for. At least several using each method per year. It is method of handling that makes difference in my setting.re nature vs nurture effect:
I had an aggressive rooster. At age 1 1/2 yr, he was culled, but I allowed a hen to hatch 3 eggs fertilized by him. She raised the babies. There was 1 cockerel, and he has grown up to be completely polite and gentle, toward humans and chickens alike. He is now a benevolent leader of the flock and I trust him completely.
I raised the father from a chick. I did not ever cuddle, hand feed, etc. I thought I followed the rules, making him stay out of my space, move out of my way. But he turned out to be human aggressive, whereas his son, raised by a hen is respectful and friendly.
I think the difference is that the hen taught the son proper chicken behavior. I'd like to hear from others with hen-raised roosters and the outcomes.
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