Originally Posted by luvs2ride1979
It doesn't. Grains provide energy and calories, but they are not "heating."
Correct me if I am wrong, but 5lb of oats of say 70%TDN should have the same "heating" quality of 5lb of hay of 70% TDN.
Typically we feed grain as a energy/calorie concentrate and we feed hay more as a bulk commodity; however when comparing comparable products, they should "heat" the same.