I like my shock collar-- works GREAT on my dog.

The only down side is that they know when it's not on either. But as a learning technique, she will at least stop and pay attention to what you are saying.
If you take her, be sure to treat her wounds with a triple antibiotics and I'd give her penicillin for a few days straight into the breast muscle. Dog bites can kill a chicken pretty darned fast. Atwoods has a bottle of Pen for pretty cheap-- it's about $11 I think? A package of syringes doesn't cost much either. I'd get her started asap.