Research in Canada indicates that feeding cattle at night could improve gains and feed efficiency. The two-year study conducted by researchers from the University of Manitoba involved about 500 head of feeder cattle in Alberta and Manitoba. Some cattle showed little or no improvement over daytime feeding, but others in the night-feeding groups improved rate-of-gain by up to 28 percent, with as much as a 12-day reduction in days on feed. Improvements in feed efficiency ranged up to 6 percent. Researchers believe night feeding has potential for reducing feedyard production costs, but larger studies are necessary to prove the theory.