Baby rabbits should stay with the mother rabbit until approximately 8 weeks of age. Baby rabbits do start nibbling hay and lettuce around 2 weeks of age, but studies have shown that baby rabbits taken from the mother before 8 weeks usually die.
A baby rabbit can be separated from its mother at eight weeks after birth. Before this age, the baby requires to feed from the mother so as to get antibodies. If weaned too young, they may die from intestinal infections.