An excite search of the above produces a variety of interesting sites, one
of which is:
http://muextension.missouri.edu/xplor/agguides/ansci/g02066.htm

near the bottom of the page under "Special considerations":

"Grains. Corn and milo are the principal grains fed to beef cattle.
Limiting wheat to 50 percent and oats to 30 percent of the grain
in finishing rations of beef cattle is recommended. Some experienced
feeders use larger amounts of wheat successfully."

Agricultural publication G2066 -- Reviewed October 1, 1993)
Copyright 1998 University of Missouri.


Grant
STONE and SPEAR
http://www.mountain-inter.net/~magnuson/