Will male chicks from the same clutch attack each other when they grow up?

[nuthatched]

- Chickens in general are not very good at extracting calories and nutrients from grass (like cows for example) correct?
- approximately what % of calories and nutrients would u say they can extract from grass and cellulose type material?
- which chicken breed would you say is best at digesting grass and cellulose type material? (for example, in the pig world, the Kunekune breed is probably the best grazer, what would be the chicken equivalent?)
- can such a breed be developed?

No, they can't. It's simply how they're made.

 

[charlie1051]

I've had 2 brothers together for 2 years and they get along great 99% of the time. They do throw down periodically but it's never bad.