What is the average size of a Rough or Smooth Collie litter?

The average size of a Rough or Smooth Collie litter typically ranges from 6 to 8 puppies. However, litters can vary, with some females giving birth to as few as 3 puppies or as many as 12. Factors influencing litter size include the dog's age, health, and genetics. Proper prenatal care can also impact the number of viable puppies born.