| Using milk urea nitrogen to predict nitrogen excretion and utilization efficiency in lactating dairy cows JS Jonker, RA Kohn, RA Erdman Journal of dairy science 81 (10), 2681-2692, 1998 | 710 | 1998 |
| Using blood urea nitrogen to predict nitrogen excretion and efficiency of nitrogen utilization in cattle, sheep, goats, horses, pigs, and rats RA Kohn, MM Dinneen, E Russek-Cohen Journal of animal science 83 (4), 879-889, 2005 | 556 | 2005 |
| A nitrogen footprint model to help consumers understand their role in nitrogen losses to the environment AM Leach, JN Galloway, A Bleeker, JW Erisman, R Kohn, J Kitzes Environmental Development 1 (1), 40-66, 2012 | 551 | 2012 |
| Effects of amount and source of fat on the rates of lipolysis and biohydrogenation of fatty acids in ruminal contents TM Beam, TC Jenkins, PJ Moate, RA Kohn, DL Palmquist Journal of Dairy Science 83 (11), 2564-2573, 2000 | 294 | 2000 |
| Milk urea nitrogen target concentrations for lactating dairy cows fed according to National Research Council recommendations JS Jonker, RA Kohn, RA Erdman Journal of Dairy Science 82 (6), 1261-1273, 1999 | 258 | 1999 |
| Evaluation of models to estimate urinary nitrogen and expected milk urea nitrogen RA Kohn, KF Kalscheur, E Russek-Cohen Journal of dairy science 85 (1), 227-233, 2002 | 248 | 2002 |
| The role of thermodynamics in the control of ruminal fermentation EM Ungerfeld, RA Kohn Ruminant physiology, 55-85, 2006 | 225 | 2006 |
| Dairy herd management practices that impact nitrogen utilization efficiency JS Jonker, RA Kohn, J High Journal of dairy science 85 (5), 1218-1226, 2002 | 214 | 2002 |
| A sensitivity analysis of nitrogen losses from dairy farms RA Kohn, Z Dou, JD Ferguson, RC Boston Journal of Environmental Management 50 (4), 417-428, 1997 | 196 | 1997 |
| Phosphorus characteristics of dairy feces affected by diets Z Dou, KF Knowlton, RA Kohn, Z Wu, LD Satter, G Zhang, JD Toth, ... Journal of Environmental Quality 31 (6), 2058-2065, 2002 | 182 | 2002 |
| Effects of dietary crude protein concentration and degradability on milk production responses of early, mid, and late lactation dairy cows KF Kalscheur, JH Vandersall, RA Erdman, RA Kohn, E Russek-Cohen Journal of Dairy Science 82 (3), 545-554, 1999 | 176 | 1999 |
| Milk production of dairy cows fed differing concentrations of rumen-degraded protein KF Kalscheur, RLB Vi, BP Glenn, RA Kohn Journal of Dairy Science 89 (1), 249-259, 2006 | 175 | 2006 |
| Calculation of the buffering capacity of bicarbonate in the rumen and in vitro RA Kohn, TF Dunlap Journal of Animal Science 76 (6), 1702-1709, 1998 | 155 | 1998 |
| Use of milk urea nitrogen to improve dairy cow diets JS Jonker, RA Kohn, J High Journal of dairy science 85 (4), 939-946, 2002 | 144 | 2002 |
| Enrichment of proteolytic activity relative to nitrogen in preparations from the rumen for in vitro studies RA Kohn, MS Allen Animal Feed Science and Technology 52 (1-2), 1-14, 1995 | 143 | 1995 |
| Effects of milk urea nitrogen and other factors on probability of conception of dairy cows K Guo, E Russek-Cohen, MA Varner, RA Kohn Journal of Dairy Science 87 (6), 1878-1885, 2004 | 135 | 2004 |
| Whole-farm nitrogen balance on western dairy farms RA Spears, RA Kohn, AJ Young Journal of dairy science 86 (12), 4178-4186, 2003 | 133 | 2003 |
| Phosphorus feeding levels and critical control points on dairy farms Z Dou, JD Ferguson, J Fiorini, JD Toth, SM Alexander, LE Chase, ... Journal of Dairy Science 86 (11), 3787-3795, 2003 | 126 | 2003 |
| A meta-analysis of fumarate effects on methane production in ruminal batch cultures EM Ungerfeld, RA Kohn, RJ Wallace, CJ Newbold Journal of animal science 85 (10), 2556-2563, 2007 | 124 | 2007 |
| Effect of a transition diet on production performance and metabolism in periparturient dairy cows J Guo, RR Peters, RA Kohn Journal of dairy science 90 (11), 5247-5258, 2007 | 102 | 2007 |
