Feeding hay

Starting feeding hay on 11/25/07. Right feeding old corn stalk, old Milo stalks and old grass hay bales. Should be out of the old hay by Dec 15 to 20 time frame. Cows still have a good bit of grass to eat on, but with colder and wet weather decided to start haying them.
The corn and Milo bales are not that good, but fed allot of it last year and cows came through looking good. I sometimes wonder if we worry too much about quality of hay. I have found that cows seem to do about the same with no matter what type of hay I run. I usually do have some rye and clover in my pastures so this may help out. I do try to feed the better hay when it gets real bad or cold for an extended period. But I have not cubed, caked or give cows any supplements. I use to give them allot, but I never could see it penciling out. I know others says it pays, what are your experiences?
I like to keep some of my better hay for the late winter early spring as I start calving in late Feb. Usually calving is completed by first of May, but because of a too young bull I had bought back in 2006 allot and very hot dry summer in 2006 my cows calved out till July. I hope to get them back on schedule, it may take a couple years to do that.

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