Chick-fil-A Accuses Poultry Suppliers of Price Fixing. Chick-fil-A, Tyson Foods Inc, Perdue Farms Inc, Pilgrim's Pride Corp, Sanderson Farms Inc, Poultry, Suits and Litigation (Civil), Fast Food Industry, Prices (Fares, Fees and Rates), Antitrust Laws and Competition Issues, Agriculture and Farming