Cattle futures stumbled as traders returned from the long US Labor Day weekend, considered the final outdoor grilling holiday of the summer, as wholesale beef prices eased from multi-year highs last week. Traders have been watching for signs of slowing consumer demand for beef as prices have soared. This will likely impact beef demand, especially as the grilling season comes to an end," said Karl Setzer, partner at Consus Ag Consulting. CME October live cattle futures ended down 0.125 cent at 239.525 cents per pound after rising to within 0.875 cent of a contract high posted last Wednesday. Lean hog futures ended higher as the wholesale pork carcass cutout value increased in the USDA's morning update.