Warren, J.H.; Smith, E.F.; Schalles, R.R.; Berger, L.; Fink, G.
(Kansas State University. Agricultural Experiment Station, 1975)
We found no advantage for creep feeding calves for either all summer
or 37 days prior to weaning. All calves were with their dams on native pasture. Calves not creep fed or creep fed only 37 days before weaning
were sick ...