With winter just around the corner, hopefully you have secured sufficient hay supplies for your winter feeding needs. How do you estimate the amount of hay you will need? If you have mature horses at maintenance level, you would want to feed a mainly forage diet.
The estimate would be similar to a 1,100-pound horse eating 2 percent of its body weight. That equals 22 pounds of hay per day. Feeding for 120 days, December through March would equal 1.3 tons of hay per horse according to Bob Coleman, University of Kentucky Extension Equine Specialist.