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Response to monensin (Control, 12.5, or 25 g/ton, air dry basis) by yearling steers fed a diet with 4% added fat was evaluated. For the entire study (104 d), daily gain, feed consumption and feed efficiency were unaffected (P>.25) by monensin. These results are in general agreement with some of our previous reports of diminished animal response to ionophores in fat-supplemented finishing diets. No adverse effects on animal health have been observed in our studies. However, whether withdrawing ionophores from finishing rations with 3.5-4% fat will affect the incidence of digestive upsets in commercial applications is not clear.
Keywords: Cattlemen's Day, 1991, Kansas Agricultural Experiment Station contribution, no. 91-355-S, Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service), 623, Beef, Monensin level, Fat, Cattle, Feedlot performance
How to Cite: Brandt, R. T., Jr. , Anderson, S. & Elliott, J. (1991) “Monensin levels in a steam-flaked milo finishing diet with 4% added fat”, Kansas Agricultural Experiment Station Research Reports. 1(1). doi: https://doi.org/10.4148/2378-5977.2227