Department of Animal Science


Date of this Version

January 1999


Published in 1999 Nebraska Beef Cattle Report. Published by Agricultural Research Division & University of Nebraska Cooperative Extension , Institute of Agriculture and Natural Resources, University of Nebraska-Lincoln.


Eight ruminally fistulated, yearling steers (two concurrent 4x4 Latin squares) were used to evaluate dietary Rumensin level (0, 30, 30/40 or 40 g/t), and bunk management strategy (ad libitum or clean bunk: 24- or 14-hour feed access). Rumensin decreased meal size and increased meal frequency without compromising intake. Clean bunk management increased consumption rate, meal size and ruminal pH change and pH variance. Steers with limited feed exposure are at greater risk for subacute acidosis; Rumensin effects consumption favorably for controlling acidosis, especially for cattle with limited feed exposure.