Keep some cattle north of Amarillo. Went last week and noticed a cow and a calf (not hers) with a cough. Spent a week out there , they didn’t seem to get any worse. I had switched thier feed to mature alfalfa (late bud ). I wanted to know what you all think may be causing the coughing ? Feed change, heat (100 degrees almost ) ? And what vaccines are you using for lungs ? Thanks . I am going back out there this weekend.