Morrisons last week announced firmer plans for an online food service - and the UK retailer could join forces with specialist Ocado. Larger rival Tesco, meanwhile, launched its own price-comparison scheme to lure in customers. Tesco, however, attracted more headlines on horsemeat with another recall. On a separate note, an Irish meat firm was said to know its beef was contaminated a year ago. Dole Food Co., Chiquita and Diamond Foods were among companies announcing results and, on the M&A front, UK firm Burton's Biscuit Co. could soon be up for grabs.