I have a hereford steer 650lbs. He has been coughing and has heavy breathing. Give him a weeks worth of LA200 and b complex. Still breathing heavy and coughs alot when he is eating. The weather out here in Idaho is 100 degrees so I was a little surpised to see this. I did buy him from the sale yard but that was over two months ago. Appreciate any advise on what to do next?????