Brown Midrib (BMR) Sudangrass is becoming more popular as a forage grass each year. Why are livestock owners choosing to grow the BMR varieties? This hybrid sudangrass is genetically mutated to reduce the amount of lignin present in cell walls and vascular tissue in the plant. This means increased digestion and improved fiber availability for livestock. Therefore, grazing this hybrid grass can improve animal production. There are plenty of other reasons that planting a BMR sudangrass can be beneficial.