I had alot of luck with natural stride, had a steer who started to walk bow legged and gimpy in his frount legs, come state he walked like he rode on air, it was a leroy brown.
We used to use a supplement from Dr. Barker in Newcastle, OK called Bovi-Stride, it really worked for us. Nutritionists say its a nutrient deficiency, but, iv'e seen a lot more evidence for genetics, or structural problems.