skip to content

Results from these Studies

  • Variations in fiber digestibility of grasses can account for differences in intake and milk production of cows fed diets similar in chemical composition but varying in ingredient composition.
  • Grass-based TMRs produced similar quantities of milk as those fed alfalfa-based TMRs.
  • Dry matter intake increased as the portion of concentrate in diets increased, resulting in higher milk production in high tall fescue diets compared to high alfalfa diets [GIS-31].
  • Comparing starch vs. sugar supplementation of grass-based diets, the non-fibrous carbohydrate (NFC) source did not influence intake or milk production, but sucrose feeding lowered N utilization efficiency, when replacing a portion of the high moisture corn in the diet.
  • Tall fescue and orchardgrass TMRs performed as well as alfalfa, but grass will require more concentrate in the ration than alfalfa.
  • Grass silage can produce as much milk per cow as alfalfa silage when rations are balanced. We observed no palatability problems with endophyte-free tall fescue.