This combo made with file photos shows a package of frozen Tyson Chicken Nuggets, left, and a package of Hillshire Farm sausage, in Palo Alto, Calif. Two days after poultry producer Pilgrim’s Pride

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This combo made with file photos shows a package of frozen Tyson Chicken Nuggets, left, and a package of Hillshire Farm sausage, in Palo Alto, Calif. Two days after poultry producer Pilgrim’s Pride made a $5.58 billion dollar bid for the maker of Ball Park hot dogs and Jimmy Dean sausages, Tyson Foods Co. on Thursday, May 29, 2014 sweetened the pot with a $6.2 billion offer. The deal sent Hillshire shares up 14 percent in premarket trading. (AP Photo/Paul Sakuma, File)

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Associated Press
Fri, May 30, 2014 9:26 AM EDT