Effects of monensin and sodium propionate on net nutrient absorption in steers fed high-grain diets

摘要

Adding either monensin or sodium propionate alone or in combination to thediet of steers fed high-grain diets resulted in increased net absorption of glucose.Monensin reduced ammonia output and gut uptake of urea. We propose thatincreased propionate availability reduces the utilization of glucose by gut tissues.allowing more glucose to reach the portal system. These changes may contribute tothe increased feed efficiency seen when monensin is fed.