Dairy 2003 Oliver, S.P., M.J. Lewis, B.E. Gillespie, H.H. Dowlen, E.C. Jaenicke, and R.K. Roberts. “Milk Production, Milk Quality and Economic Benefit Associated with Prepartum Antibiotic Treatment of Heifers.” Journal of Dairy Science 86(2003):1187-1193. 2002 Jaenicke, E.C., R.K. Roberts, H.H. Dowlen, and S.P. Oliver. “Economic Benefit Associated with Antibiotic Treatment of Heifers before Calving.” Journal of Dairy Science 86:1187 1193.