Processor JBS said on Wednesday that Beijing blocked U.S. beef shipments from the company's plant in Greeley, Colorado, because traces of the feed additive ractopamine were identified in beef destined for China.

Low cattle supply behind weakness in US division; headwinds expected to continue
Attorney general calls company's emissions goals 'infeasible'
Less of the firm’s beef is coming from ranches with environmental or human rights issues
Low U.S. pork prices, beef margins and global chicken glut cited
'Greater balance' forecasted for global chicken supply