Bridgford Foods Corp. (Nasdaq:BRID) yesterday announced a 4.8% increase in sales for the first quarter of its 2001 fiscal year. Sales increased by $1.9 million to $42.3 million for the quarter ended Feb. 2, 2001 compared with the same period last year. Net income increased 3.7% in the first quarter of 2001 to $2.5 million compared with the $2.4 million earned in the first quarter of 2000.