Can a pregnant dog have puppies from multiple fathers in one litter?

During heat period I had mated my bitch with a good Labrador male on the 3 dates given by the Vet. The first two matings with the male Labrador was successfull. But before 3rd mating I doubt whether my bitch has mated with a male stray dog . If yes , how will it affect my puppies ? Will all the offspring wil have some charecteristics of male stray dog or just one or two puppies ? Will semen from stray dog affect all the eggs released ? And she is getting pregnant for the second time in her life.

1 Answer

Most Helpful Answer

Answered By Mallori Kaminski, BVSc

Veterinarian