Cyda’s puppies are 6 days old. They are growing bigger and stronger each day.
During the first few days after birth, the bitch’s milk contains colostrum and antibodies to protect the puppies and strengthen their immune system. Colostrum actually works as a natural and 100% safe vaccine, which needs to be boosted artificially as the puppy grows and develops.
The bitch’s milk continually changes to suit the needs of her growing puppies. Milk for puppies of 5 weeks old, for example, would not be suitable for new-borns, although it is better than artificial (powdered) milk in an emergency situation.