There are cases when the natural mother may be absent from feeding her litter or she has rejected nursing. Other times, the mother may not have produced adequate milk to feed the entire litter or may have developed an infection which may contaminate her milk, preventing momma from nursing. Some breeders prefer not to subject the mother to painful feedings or raw sagging nipples, so they opt to bottle feed. Puppy Nanny assists in making feeding time more efficient for pet parents, breeders, rescue shelter volunteers, and veterinarians.