Three of five houses on a commercial broiler farm were cleaned, and hardwood sawdust was spread to a depth of about 3 cm prior to the arrival of chicks. Hard or caked litter was removed from the remaining two houses, and litter was top dressed with about .25 cm of hardwood sawdust. Litter samples were collected weekly from each house. Moisture, pH, and mold counts were determined for each sample. No significant differences were detected in average bird weight, feed conversion, mortality, or condemnations. Litter moisture and pH values increased over the course of the experiment, whereas litter ash values showed no consistent trends. The highest mortality for birds on both litter types occurred in the first week of the experiment. However, the data suggest that when new litter is used for broilers, mortality is more evenly distributed over the grow-out period. (