
My youngest Bearded Collie (she is 12 next month), always had the strongest smelling urine. I agree with Dill about them being too stoical for their own good.
My girl was put on antibiotics for something else, and her smelly pee disappeared, and I wished I had done something about it sooner. She was fine for a couple of years, and the next time I smelled smelly wee, I collected a sample and shot off to the vets and had it tested. I was given antibiotics again. Cleared very quickly, and I would never again deny a bitch antibiotics for this complaint.
I would urge anyone to take this seriously.