Chicken Nutrition

Can you please give me some ideas on possible topics on the nutrition of poultry in particular on the chicken?
my sister in her final year of schooling will masteral thesis on poultry in particular chicken, about their food .. so I'll be very happy if you could help us to provide a thesis topic .. Thank you!

feed on grass. how does this affect the chickens? protein. more than twenty-two percent kill chickens. Why? Bugs. why the chickens eat voraciously? Hope this helps or starts a line of thought at least

National Research Councils' Guide poultry nutrition "