Do you know if it is alpha or not? How does it behave when you place it on its back and hold it there? How about if you pick it up slightly off the floor? How does it react when you take its food? Male or female?
Not too much breed specific, except for the exercise.
My best advice is obedience training to socialize and formally train. If you are hunting, find some good hunting classes. If you are not a hunter go for Utility Dog and then Canine Good Citizen. The more you train this dog, the less excersize it will need, but should not replace exercise, it will tire the dog though.
Crate train it immediately. Lash its leash to your belt around the house when not in the crate, during this time, start it healing. Each time you stop, she should sit.
Feed yourself first, during which the dog is down stayed under the table.
Buy The Art of Raising a Puppy.
Start hand signals with the commands, here are a few:
http://www.deafdogs.org/training/signs.php.
Down should be a quickly raised arm straight above your head, palm to the dog... so that it could performed from accross a street for example. Always use a strong voice or yell this one, wether the dog can hear you or not. This down should be held until released and is the single most important command that an active/social dog can know (IMO).
Contratulations.
PS: Ditch the halter.
