We have always fed square bales, but we just got our first round bale. The bale weighs about 1000#. We have three geldings : 6 yr old 1200#, 7 yr old 1000#, 1.5 yr old 800#. They are all healthy and in good weight. The temps here range from 25F-10F there is some wind as well. Ther have a shelter and pine trees. How long will the bale last do you suppose? I know they waste more of the rounds. I just am wondering what to expect.