Can someone give me some advise on weaning?

The puppies are only three weeks old on wednesday, but their mum doesn't seem to want to care for them or feed them.

Any advise?
Thanks

This is thge age to start them on swemin solids eventually giveing four or five meals a day.  If the pups are content and gaining weight then it is doubtful she is neglecting ehrtm just feedign them more in one go, but5 it is time to start giving ehr a hand,a dn by 5 weeks old or so she will really only be topping them up and most of the work will be on you.