The incision takes about 14 days to heal BUT like others said wait at least 3 full weeks before hunting her. I work at a vet clinic and have seen the results of letting a dog have too much activity before fully recovered--not good. Spaying is a major surgery no matter what people think.
I just had my young female spayed, after 2 weeks I let her exercise some, gradually building up, it wasn't till over 3 weeks post surgery I took her hunting. And had no problems. Mine was recovering outside on the chain no problem, but just make sure if it's rainy or damp at all she has a warm dry place to go. The incision shouldn't get wet.