Older dog biting new puppy

Question
I have a 7 year old female Doberman that is not spayed and we have had her since she was 6 weeks old.  She is a great family dog and guard dog.  We added a female German Shorthair 4 years ago and she had a litter of pups 14 weeks ago.  We have sold all of the pups except one female we kept because when the mom delivered her and was cleaning her she bit one of her toes off so she only has 3 toes on one paw.  She is a love and really all 3 of the girls are great loveable dogs.  The problem we are having is the Doberman bit the puppie bad, and we had to take her to the vet to get medication.  The doberman is showing aggresive signs towards the puppie and I am not sure what to do other then keep them completely away from each other.  The mom of the pup does not even do anything about the Doberman messing with her pup either.  What can I do to make them get along, I want them to be family not only with us but each other?

Answer
Sarah, the doberman could be acting this way for several reasons; either she senses something is not 'right' about the puppy, or she just doesn't want anything to do with it whatsoever.

What, so far, have you been doing whenever the doberman shows aggression towards the puppy? How does she react? What is the puppy doing when the doberman becomes aggressive, and how does she (the puppy) react? What I would do would be to never leave them alone together, and I would keep the doberman on a leash and prong collar and, figuratively speaking, kick her BUTT for so much as growling at the puppy inappropriately. It could be that she just doesn't want the puppy near her. If that is the case, try to redirect the puppy to a toy or other activity when she starts showing interest in the doberman. I have a dog like this - she absolutely despises my female Shepherd, for no apparent reason, and I have to keep on top of them or a fight will break out.

Often, it is extremely difficult to keep a house full of intact female dogs; they will fight worse than males, in many cases. I'm glad this is the first issue you've had so far.

I do have a question, though, are you involved with showing or anything with your dogs? Why are you keeping them intact and why did you breed the Pointer? At 7 years of age, I would recommend going ahead and spaying the doberman. She should not be bred at that age, and having her spayed is probably the best thing you can do for her, healthwise, at this point. There's really no reason to keep her intact now.