Tyson Foods (NYSE:TSN) showed improving numbers in a recent earnings report, according to Reuters, due in part to the company's acquisition of Hillshire Brands Co. last year. In premarket trading Monday, share of the largest poultry provider in the United States were up more than 1%. Tyson revenue rose to 10.5% in the most recent quarter, hitting an anticipated earnings per share of approximately $3.30-$3.40. According to Reuters, chicken sales for the year are down, largely due to an outbreak of bird flu effecting more than 21 million chickens and turkeys.