
Many congrats on your lovely pups, ahhh what a plesent shock for you to have 8 pups instead of 3! :)
I would feed mum all boiled Chicken breasts, steak, lean mince, boiled eggs, grated cheese, puppy formual milk, etc, to build her strength up to care for her adorable pups, when I have had pups in the past in the first few days I would feed mum a little of the above (not all in one though!) after she had fed her babies, and the boiled chicken was always a faviourite !
Good luck with the pups, and keep us posted on their progress, its great weather to have pups, and before too long they will be running around being little cheeky monkeys! :)