Fig. 4. (a) Total herbage harvested and (b) total herbage mass (kg ha^-1) over the 2.3-yr experiment in a mixed pasture rotationally grazed with cow–calf pairs under tall or short grazing height regimes in State College, PA. In the tall and short grazing regimes, bluegrass was harvested at 5 and 3 cm, respectively; all other species were harvested at 7 and 5 cm, respectively. Letters indicate species that differed significantly among species at P < 0.05. Species that differed between grazing regimes at P < 0.05 are indicated with *. Species that differed between grazing regimes at P < 0.01 are indicated with .