cattle disease

Bovine spongiform encephalopathy (BSE) in a Brazilian cow leads to concerns about a global outbreak and possible impacts on human health, Argentina's agriculture exports hit hard by the worst drought of the last four decades, and queen bees for colonies used to pollinate crops in the U.S. are in high demand.

Young cattle placed into feedlots are at risk for developing respiratory diseases that affect weight gain and may even result in death. Pen riders check…