• Welty, C.M., Wenner, B.A., Wagner, B.K., Roman-Garcia, Y., Plank, J.E., Meller, R.A., Gehman, A.M., Firkins, J.L. Rumen microbial responses to supplemental nitrate. II. Potential interactions with live yeast culture on the prokaryotic community and methanogenesis in continuous culture. J. Dairy Sci. 2019;102:2217–2231
  • Roman-Garcia, Y., Wenner, B.A., Welty, C.M., Wagner, B.K., PLank, J.E., Meller, R.A., Waits, S.J., Gehman, A.M., Firkins, J.L. Rumen microbial responses to supplemental nitrate. I. Yeast growth and protozoal chemotaxis in vitro as affected by nitrate and nitrite concentrations. J. Dairy Sci. 2019;102:2207–2216
  • M. E. Tiffany, V. Fellner, and J. W. Spears. 2006. Influence of cobalt concentration on vitamin B 12 production and fermentation of mixed ruminal microorganisms grown in continuous culture flow-through fermentors. J. Anim. Sci. 84:635
  • M. E. Tiffany, and J. W. Spears. 2005. Differential responses to dietary cobalt in finishing steers fed corn – versus barley-based diets. J. Anim. Sci. 83:2580.
  • M. E. Tiffany, J. W. Spears, L. Xi, and J. Horton. 2003. Influence of dietary cobalt source and concentration on performance, vitamin B 12 status, and ruminal and plasma metabolites in growing and finishing steers. J. Anim. Sci. 81:3151.
  • M.E. Tiffany, L.R. McDowell, G.A. O’Connor, F.G. Martin, N.S. Wilkinson, S.S. Percival, and P.A. Rabiansky. 2002. Effects of residual and reapplied biosolids on performance and mineral status of grazing beef steers. J. Anim. Sci. 80:260.
  • M.E. Tiffany, J.W. Spears, and F.R. Valdez. 2002. Effects of dietary cobalt source and concentration on performance, vitamin B 12 status, and ruminal and plasma metabolites in growing and finishing steers. J. Anim. Sci. 80 (Suppl. 1):47
  • M.E. Tiffany, L.R. McDowell, G.A. O’Connor, F.G. Martin, N.S. Wilkinson, E.C. Cardoso, S.S. Percival, and P.A. Rabianski. Effects of pasture-applied biosolids (municipal sewage sludge) on forage nutrient concentrations over a grazing season in North Florida. 2002 Beef Cattle Report, Department of Animal Science, University of Florida.
  • M.E. Tiffany, L.R. McDowell, G.A. O’Connor, F.G. Martin, N.S. Wilkinson, E.C. Cardoso, S.S. Percival, and P.A. Rabianski. Effects of pasture applied biosolids (municipal sewage sludge) on performance and mineral status of grazing beef heifers. 2002 Beef Cattle Report, Department of Animal Science, University of Florida.
  • M.E. Tiffany and J.W. Spears. 2002. Effects of supplemental cobalt source and concentration on performance, ruminal and plasma metabolites, and carcass characteristics of growing and finishing steers. North Carolina State University, College of Agriculture and Life Sciences, Department of Animal Science, 2002 annual reports.
  • Bass II RT, Swecker Jr. WS, Eversole DE. 2001.  Effects of oral vitamin E supplementation during late gestation in beef cattle that calved in late winter and late summer. Am. J. Vet. Res. 62(6): 921-927.
  • M.E. Tiffany, L.R. McDowell, G.A. O’Connor, H. Nguyen, F.G. Martin, N.S. Wilkinson, and N.A. Katzowitz. 2001. Effects of residual and reapplied biosolids on forage and soil concentrations over a grazing season in North Florida. I I. Microminerals. Commun. Soil Sci. Plant Anal. 32 (13&14):2211.
  • M.E. Tiffany, L.R. McDowell, G.A. O’Connor, H. Nguyen, F.G. Martin, N.S. Wilkinson, and N.A. Katzowitz. 2001. Effects of residual and reapplied biosolids on forage and soil concentrations over a grazing season in North Florida. I. Macrominerals, crude protein, and in vitro digestibility. Commun. Soil Sci. Plant Anal. 32 (13&14):2189.
  • G. Valle, L.R. McDowell, D.L. Prichard, P.J. Chenoweth, D.L. Wright, F.G. Martin, W.E. Kunkle, M.E. Tiffany, and N.S. Wilkinson. 2001. Effect of selenium supplementation on thyroid hormone of growing beef calves. Inter. J. Anim. Sci. 16 (2):277.
  • M.E. Tiffany, J.W. Spears, and K.E. Lloyd. 2001. Influence of dietary phosphorus and trace mineral chelates on growth and reproduction in beef cattle. J. Anim. Sci. 79 (Suppl. 2):76.
  • M.E. Tiffany, L.R. McDowell, G.A. O’Connor, F.G. Martin, N.S. Wilkinson, and H.Q. Nguyen. 2001. Pasture applied biosolids as related to copper status of grazing beef steers. J. Anim. Sci. 79 (Suppl. 1):291.
  • M.E. Tiffany, J.W. Spears, and J. Horton. 2001. Influence of supplemental cobalt source and concentration on performance, and ruminal and plasma metabolites in growing and finishing steers. J. Anim. Sci. 79 (Suppl. 1):87.
  • L.R. McDowell, G.A. O’Connor, M.E. Tiffany, N.S. Wilkinson, H. Nguyen, and E.C. Cardoso. 2001. Effect of using high molybdenum biosolids (sludge) as fertilizers on copper status of beef cattle. Proceedings of the 12 th Annual Florida Ruminant Nutrition Symposium. January 11-12, Gainesville, FL. pp. 51-68.
  • Bass II RT, Swecker Jr WS, Stallings CC.  2000.  Effects of supplemental parenteral administration of vitamin E and selenium to Jerseys and Holsteins during the nonlactating period. Am. J. Vet. Res. 61(9): 1052-1056.
  • M.E. Tiffany, L.R. McDowell, G. A. O’Connor, H. Nguyen, F.G. Martin, N.S. Wilkinson, and E.C. Cardoso. 2000. Effects of pasture-applied biosolids on forage and soil concentrations over a grazing season in North Florida. II. Microminerals. Commun. Soil Sci. Plant Anal. 31(1&2):215.
  • M.E. Tiffany, L.R. McDowell, G. A. O’Connor, H. Nguyen, F.G. Martin, N.S. Wilkinson, and E.C. Cardoso. 2000. Effects of pasture-applied biosolids on forage and soil concentrations over a grazing season in North Florida. I. Macrominerals, crude protein, and in vitro digestibility. Commun. Soil Sci. Plant Anal. 31 (1&2):201.
  • M.E. Tiffany, L.R. McDowell, G. A. O’Connor, F.G. Martin, N.S. Wilkinson, E.C. Cardoso, S.S. Percival, and P.A. Rabiansky. 2000. Effects of pasture applied biosolids on performance and mineral status of grazing beef heifers. J. Anim. Sci. 78:1331.
  • M.E. Tiffany, L.R. McDowell, G. A. O’Connor, H. Nguyen, F.G. Martin, and N.S. Wilkinson. 2000. Effects of residual and reapplied biosolids on forage and soil mineral concentrations in North Florida. J. Anim. Sci. 78 (Suppl.1):112.
  • M.E. Tiffany, L.R. McDowell, G. A. O’Connor, F.G. Martin, and N.S. Wilkinson. 1999. Comparison of collection methods for determination of forage nutritive status. Commun. Soil Sci. Plant Anal. 30(19&20):2731.
  • M.E. Tiffany, L.R. McDowell, G. A. O’Connor, F.G. Martin, and N.S. Wilkinson. 1999. Variation of forage and extractable soil minerals over two grazing seasons in North Florida. Commun. Soil Sci. Plant Anal. 30 (19&20):2743.
  • M.E. Tiffany, L.R. McDowell, G. A. O’Connor, F.G. Martin, N.S. Wilkinson, E.C. Cardoso, S.S. Percival, P.A. Rabiansky and H. Nguyen. 1999. Effects of pasture applied biosolids on performance and mineral status of grazing beef heifers. J. Anim. Sci. 77 (suppl. 1):269.
  • M.E. Tiffany, L.R. McDowell, G. A. O’Connor, H. Nguyen, F.G. Martin, N.S. Wilkinson, and E.C. Cardoso. 1999. Effects of pasture applied biosolids on forage and soil mineral concentrations in North Florida. J. Anim. Sci. 77 (Suppl. 1):209.
  • Bailey TL, Whittier WD, Murphy JM, Schurig GG, Riva AL, Swecker WS, Pelzer KD, Bass RT, Caudell D, Eyestone W. 1998.  Serum immunoglobulin type G levels in calves produced by IVF and delivered by elective cesarean section. Therio. 50(6): 853-860.
  • M.E. Tiffany. 1998. Effects of biosolids application to pasture on performance of grazing cattle, and mineral status of forages and soils in North Florida. Master’s Thesis, University of Florida, Gainesville.
  • J. Velasquez-Pereira, L.R. McDowell, C.A. Risco, D. Risco, N.S. Wilkinson, L.X. Rojas, P. Rabiansky, M.E. Tiffany, and S.N. Williams. 1997. Effect of feeding gossypol from cottonseed meal and vitamin E to dairy calves. J. Anim. Sci. 75 (Suppl. 1):251
  • Bass II RT, Whittier WD. 1996.  A laminitis outbreak in a dairy herd striving for increased milk production. Vet. Med. 91(11): 1033-1045.
  • Hohenboken WD, Bass II RT, Fontenot JP, McClure WH. 1991.  Traits of Angus cows differing in lifetime productivity. Can. J. Anim. Sci. 71(2): 603-606.
  • Long, AR & Massie, SJ & Tyznik, WJ. 1988. Rapid Direct Extraction Derivatization Method for the Determination of Acylglycerol Lipids in Selected Sample Matrices. J. of Food Sci. 53(3): 940-942.