Is it normal for a dog to breed 5 days apart?

[peafrog]

My Great Dane female bred on November 1st and 2nd. When the male was with her on the 6th she bred again. Is it normal to have puppies 5 days apart? Will some of the babies be bigger than the others?

[wiggal]

I dont know if its the same for cats as it is dogs, but one of my cats had 4 kittens over the space of 3 days.
When I spoke to te vet as was worried, she says it is possible for them to get pregnant at different times from different males and then give birth at different times.

[lankeela]

By bred, do you mean she actually had puppies on the three dates, or was mated by the dog on the three dates? If a bitch is mated on different dates, she will still only give birth on one day, as the sperm can remain in the bitch for up to a week before finding eggs to fertilize. Occasionally puppies will be born that are less mature than the other pups, and these could be from a later mating, and it is possible to have puppies from two different stud dogs in the same litter.

[wildwood]

To clear it up... dogs can have puppies by more than one male but they all come in the same litter. A b!tch will only accept a dog for mating when she is on heat, and thus receptive. If you get puppies 5 days apart the later ones are almost certainly stilborn. Normally the puppies are born all within the one day, even if some have a different father. There is usually a slight difference of size in each of puppy of one litter but that has nothing to do with the day they were conceived.