Baby chicks weak on arrival

I got my shipment of meat birds today, 2 of the 26 I ordered were weak and barely moving when they arrived. I held them under the heat lamp for 10 minutes and they started to perk up, so I gave them some electrolyte water and one started to chirp. I thankfully had one of my layers go broody a few days ago, so I slipped them under her, and she seemed to take on to them immediately! Started talking to them and cleaning their butts and now wont let me tough her. Ill check on them in a few hours to see if theyve perked up enough for me to put them back with the rest of my meat birds! Anything I should do further?