* The individual dog's genetics: Some breeds and individual dogs are genetically predisposed to having larger litters than others.
* The age of the mother dog: Younger dogs tend to have slightly larger litters than older dogs.
* The health of the mother dog: A healthy dog is more likely to have a larger litter than a dog with health problems.
* The size of the dog: Larger dogs tend to have larger litters than smaller dogs, but this is not always the case.
Typically, toy poodles have litters ranging from 2-5 puppies, but it's not unusual for them to have larger or smaller litters.
If you are interested in breeding toy poodles, it's important to consult with a veterinarian and a reputable breeder to get more information about litter sizes and responsible breeding practices.