Julie D.
Favorite Answer
I have no idea, but the Vet can tell you when you take her to one ALONG with your Pit Bull and her puppies that were just whelped. With that said, you're going to have to make two separated visits to the Vet. Do NOT take your Mastiff along in your vehicle with the new Dam and her litter, or you'll end up with a blood bath.
Anonymous
If you are sure it's not just because your dog is cold:
http://pets.webmd.com/dogs/my-dog-shivering-trembling
Though since you seem to keep a zoo of animals I doubt this is a serious question.