at about 4 weeks we take them out of the welping box and let them have some moistened puppy food. whatever they will eat in 5 minutes and put them back with their mother. this is a good time to worm them. at 6 to 7 weeks they can be weened from the mother dog who will be very thankful that her milk can dry up. we use the purina pro plan puppy food but used to use puppy chow. feed them the dry puppy food until 6 months then mix in some adult gradually until they are eating the adult.