Effect of Continuous Grazing on the Diet of Steers

Abstract

Continuous grazing of Sandhill native forage at a normal stocking rate in late August had no effect on organic matter intake (OMI), but the protein content and in vitro organic matter digestibility (IVOMD) declined over a 3-week period. The average OMI was 75 g/kg W^.75. As the availability of forage declined, the ability of the steers to selectively graze was apparently reduced. Similarly, continuous grazing of mixed prairie-type range from October 30 to March 13 had no effect on OMI but the protein content of the diet was reduced. The IVOMD did not change during the winter grazing trial. The average OMI was 66 g/kg W^.75 Steer calves gained .24 kg daily during the grazing period.