US dairy giant Dean Foods has seen full-year turnover double after rival dairy group Suiza acquired Dean Foods for $ 1.7bn last year and kept the Dean Foods name.

Sales rose 50% to $9bn from $5.97bn and net income increased 60% to $175.4m from $109.8m.

Chairman and CEO Gregg Engles said that Dean Foods had achieved $100m in added sales and cost reductions from the Suiza merger during 2002.

The company said it had invested $130m in 2002 in strategic brands like International Delight coffee creamers, Silk soy milk and Hershey's flavoured milks. It expects to spend a further $190m on the brands in 2003.