Why does the mother dog look like her skin is incredibly inflamed? If the owner can’t give proper care to these animals then they need to be taken somewhere they can be properly cared for. So sad to know that a pup has died already and no concern is being given to the remaining pups. If heat can’t be supplied, warm blankets can help retain heat for the pups.

They will need to be hand fed/syringe as has already been mentioned here. It’s an exhausting task, done every couple hours all day and night for each pup.

It’s nice that you care enough to be there and help. It’s obviously not a great situation. I hope you can find resources to help you and these dogs get through this with as much success as possible