(Image source: usatoday.com) Shares of the food producer Tyson Foods, Inc. (NYSE:TSN) are falling in the early session as second quarter earnings missed estimates. The company earned 60 cents per share in the quarter; analysts were expecting earnings of 63 cents per share. However, revenue did exceed estimates. The company also expects domestic production of meat to fall about 1 percent for the fiscal year. Currently, Tyson is among the worst performers on the S&P 500.