I currently have seven chickens: an EE cockerel 9 weeks and six 7 week old BR and RSL pullets (3 of each). Right now they're on chick starter bc I didn't want to mess with their nutrition in the critical growth period. I'd love to be able to sustain the chickens on simple ingredients I can grow either inside or out. So far I'm starting to farm mealworms and seed barley and BOSS fodder. They'll free range for about half the day. I would supplement salt and oyster shells when they start laying. Will they need more carbohydrates and what source do you recommend? What else do they need? TIA for any advice!