China and Russia banned imports from some U. S. states and Mexico, and stock prices for the nation's leading pork companies, Smithfield Foods Inc. and Tyson Foods Inc., took a hit.

中国和俄国禁止从美国和墨西哥进口猪肉，美国主要的猪肉加工公司，史密斯·菲尔德食品公司和泰森食品公司的股价受到很大的打击。

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The trial for Tyson Foods' lobbyist Jack Williams is scheduled to begin February 2.

CNN: Judge Orders Tyson Foods To Pay $6 Million In Fines

That compares with Smithfield trading at 13-times earnings and Tyson Foods at 8-times earnings.

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Hormel Foods increased 2%, though Tyson Foods fell 0.1%, Sanderson Farms 1.4% and Pilgrim's Pride 4.1%.

FORBES