Jensen, M.; Held, R.; Riley, J.; Smith, E.F.
(Kansas State University. Agricultural Experiment Station, 1982)
Rumensin was self-fed in a loose salt mixture to yearling heifers on
late-summer bluestem pasture (August to November). They ate 0.036 lbs.
of salt mixture (124 mg of Rumensin) daily, but performance did not improve.