Native grass samples were collected
monthly for five years and analyzed for
nutrient content. Crude protein and ADF
content indicate that grass quality is highest
in May and June, then steadily declines until
October. Stocker operators may need to
begin protein supplementation as early as
July to sustain weight gains. Trace mineral
values were erratic from year to year and
month to month between and within years,
indicating that trace mineral supplementation
should probably be maintained throughout
the grazing season.