How long can a newborn kitten survive without food?

a kitten should not be removed from it's mother under the age of 12 weeks. under, that age kittens get health and nutrients from their mother's rich, fatty milk. when, the queen is finally slapping away nursing kittens, is a good time to remove them. or else, the female may hurt them, as the kittens grow teeth, their sharp biters pierce the female's belly causing her to feel pain, and slap the away from her body. hope this helps! :)