I have a bull calf that appeared to have 2 stiff legs develop a few weeks after he was born. He appeared to recover. He is now 8 wks. old and is having a very difficult time getting around. He throws his back left leg and follows up with his rear right. He walks about 10 ft. then lays back down. No apparent weight loss as of yet. I am thinking that as he has gained weight, it has put a greater strain on his problem, perhaps dislocated hips? Any ideas on correcting the problem.