Originally Posted by Corporal
Call your local University AG department and get some hay education. I did. They said that hay will lose it's nutrition (and protein) for up to one year, then that stabilizes. Therefore, my preference is one year old alfalfa. Still rich, just not AS rich.
Yes, grass, alfalfa, whatever plant loses nutrients over time(often quite quickly) but unfortunately, sugar is not one of the nutrients that it loses - can be just as high in year old hay as the day it was cut!