Rumensin® Ruminal Delivery Devices put in place 76 days prior to steers
entering a feedlot resulted in an average reduction in daily dry matter intake of
3.6% and a small 1.8% increase in daily gain during a controlled 28-day feeding
phase. All steers were fed an 85% concentrate feedlot diet fortified with 30g/ton
of Rumensin® and 10 g/ton of tylan®.