Hi Maine 12. Yes you can feed corn silage. If the calves are green, ( no grain or creep feed, and very little condition) it will take a few days to get them used to the silage. I would start the calves out with grass hay and sprinkle silage on top. Every few days I would increase the silage and decrease hay until I got to the desired lbs of silage. How long this will take depends on how good the consumption is.
P.S. I would be interested in what everyone Else's weaning program is, i.e. age of calves, vaccination and feed program. Thanks.