General Mills' pet food and treat sales grew 38 per cent in the fourth quarter of fiscal year 2019 on a pro forma basis. General Mills officials released this data and other preliminary financial results for the company's pet segment, including Blue Buffalo, at the 2019 Bernstein Strategic Decisions Conference.General Mills' pet segment operating profit increased 82 per cent on a pro forma basis in the fourth quarter of this fiscal year. This included 3 mio dollars in purchase accounting charges.For the full fiscal year, pet segment net sales have increased 11 per cent. Segment operating profit decreased 11 per cent on a pro forma basis in fiscal year 2019. In late June, General Mills plans to report its fiscal year 2019 results for the whole company, including final pet food results.