Cash cows This story was published Tuesday, December 30th, 2003 By Anna King, Herald staff writer WALLA WALLA -- Cattle farmer Joel Huesby says he's not worried about mad cow disease. In fact, he's increasing his herd's size exponentially because of it. This past year, Huesby's family's business, Thundering Hooves, raised and sold 40 pasture-finished beef cattle. But since the mad cow disease scare, Huesby has seen a dramatic increase in orders for 2004. Because of that, he's decided to boost his herd to 200 to 300 head and open a processing and retail outlet in downtown Walla Walla. "Oh...