Sorry, can't help you about her nose....a vet will be able to tell you more.
PLEASE do NOT think of breeding her.
Read all of the stickies on the Breeding Forum and learn what a good breeder is. You do NOT want to be a backyard breeder BYB.
This dog is not breeding material...you don't even know her background, or her pedigree...why would you even think of breeding this dog???
Shelters and rescues are full of Rottweilers and there are not enough good homes, why would you contribute to producing more mediocre dogs???
Start by reading this thread:
http://www.rottweiler.net/forums/bre...-nice-dogs.htm
Please read the forums here and educate yourself. Your dog has a defective nose, sounds like and 'iffy' temperament...for sure not breeding material. Spay her when she is old enough...train her and enjoy her for the pet/companion that she should be.
Gina