Pittsburgh-based food company Heinz has announced that it will soon have to give redundancy slips to nearly 2,000 employees, 4% of its workforce, because of struggling sales in its tuna and pet food businesses. The US producer best known for its popular baked beans and tomato ketchup ranges has not enjoyed a particularly profitable Q3, which ended on 31 January. In an uninspiring earnings report it blamed prohibitive costs and falling sales at the