Research involving 32 improved grass varieties, grass/legume mixtures was conducted at the University of Findlay (Ohio) Equestrian Center. Each 15x24-foot plot was replicated three times and evaluated for yield and quality. Quantitatively, species were rated for height and yield using a rising plate meter correlated by biomass density on a dry matter basis. Qualitative ratings were used to evaluate weed pressure, the overall quality of each plot, and samples were taken for nutrient analysis. These measurements were taken approximately 3-4 times per year for 4 years (2003 – 2006). ).  The nutrient value of field samples were analyzed for crude protein, nutrient detergent fiber (NDF), total digestible nutrients (TDN), and relative feed value (RFV) in four times in 2003, twice in 2004. Plots were mowed after each measurement and fertilized annually. The top performing grass varieties for yield included: horsemaster mix and white clover, bronson tall fescue, hakari bromegrass, and bardina orchard grass. The top performing grass varieties for quality included: mix of orchard grass ,tall fescue, perennial ryegrass, and white clover; festololium; timothy; and perennial ryegrass.  A special horse grazing preference study was also conducted in 2004 and 2005.