
Hi Guest,
you haven't mentioned how old your litter is but if you are bottle feeding the pups the mother will naturally produce less milk anyway as her body creates it on a supply and demand basis - unless of course your bitch is suffering from some problem and I've misinterpreted your post. There is no foolproof substitute for mother's milk and it may be that something is either missing from their diet or is being added which doesn't suit them.
NB: There is also a condition (can't remember the name off hand) whereby you may notice slight spotting on the mother's belly which can initially appear to be little scratch marks from the pups' claws but on close inspection are tiny red pimples which develop a white head, it drops off, and a small scab/scaley skin is revealed. It is a minor and fairly common skin complaint in some nursing bitches which is in turn passes onto the puppies. Your description is a classic sign of this and normally the bitch is given meds appropriate for safely feeding her puppies and the puppies do not normally need individual treatment as they get the required meds through her milk ;) Dashed if I can remember the name but it is not a serious condition and so I'd take a trip to the vets with mum and pups (away from normal surgery hours and maybe just let vet see them in your car crate or whatever) just to be on the safe side so she can have any necessary treatment. HTH, good luck, Teri :)