Yoshinoya D&C Co. said Friday its sales and profits fell in the year that ended Feb. 29 and it anticipates even steeper declines for the current business year due to the ongoing ban on U.S. beef imports.

Yoshinoya, the nation's No. 1 chain serving beef-on-rice dishes, stopped serving its mainstay dish of "gyudon" beef on rice on Feb. 11 after its stocks of beef ran out.

It said its group net profit fell 33.8 percent from the previous year to 5.69 billion yen amid weak sales.