Selected Research Publications (2000 - present)

2010

• Effect of organic zinc, manganese, copper, and cobalt on milk production, follicular growth, embryo quality, and tissue mineral concentrations in dairy cows.
  Hackbart, K. S., R. M. Ferreira, A. A. Dietsche, M. T. Socha, R. D. Shaver, M. C. Wiltbank, and P. M. Fricke. J. Anim. Sci. (In press). Published online Sep 3, 2010.
  
• Effect of feeding rolled flaxseed on milk fatty acid profiles and reproductive performance of dairy cows.
  Bork, N. R., J. W. Schroeder, G. P. Lardy, K. A. Vonnahme, M. L. Bauer, D. S. Buchanan, R. D. Shaver, and P. M. Fricke. J. Anim. Sci. (In press). Published online July 9, 2010.
  
• Management of dry and transition cows to improve energy balance and reproduction.
  Grummer, R. R., M. C. Wiltbank, P. M. Fricke, R. D. Watters, and N. Silva del Rio. 2010. J. Reprod. Dev. 56:S22-S28.
  
• Effects of twin pregnancy and dry period feeding strategy on milk production, energy balance and metabolic profiles in Holstein cows.
  Silva del Río, N., P. M. Fricke, and R. R. Grummer. 2010. J. Anim. Sci. 88:1048-1060.
• Supplementation of progesterone via CIDR inserts during ovulation synchronization protocols in lactating dairy cows.
  Chebel, R. C., M. J. Al-Hassan, P. M. Fricke, J. R. Lima, J. E. P. Santos, C. A. Martel, J. S. Stevenson, R. Garcia, R. L. Ax, and F. Moreira. 2010. J. Dairy Sci. 93:922-931.

2009

• Genetic parameters for anovulation and pregnancy loss in dairy cattle. (15 pages, 944 KB)
  Bamber R. L., G. E. Shook, M. C. Wiltbank, J. E. P. Santos, and P. M. Fricke. 2009. J. Dairy Sci. In press.
• Effect of interval to resynchronization of ovulation on fertility of lactating Holstein cows when using transrectal ultrasonography or a pregnancy-associated glycoptorein (PAG) ELISA to diagnose pregnancy status. (8 pages, 768 KB)
  Silva, E., R. A. Sterry, D. Kolb, N. Mathialagan, M. F. McGrath, J. M. Ballam, and P. M. Fricke. 2009. J. Dairy Sci.92:3643-3650.
• Effect of dry period length on reproduction during the subsequent lactation.
  Watters, R. D., M. C. Wiltbank, J. N. Guenther, A. E. Brickner, R. R. Rastani, P. M. Fricke, and R. R. Grummer. 2009. J. Dairy Sci. 92:3081-3090.
• Factors affecting pregnancy loss for single and twin pregnancies in a high-producing dairy herd. (10 pages, 280 KB)
  Silva del Río, N., J. Colloton, and P. M. Fricke. 2009. Theriogenology 71:1462-1471.
• . Strategic treatment of anovular dairy cows with GnRH (9 pages, 404 KB)
  Sterry, R. A., E. Silva, D. Kolb, and P. M. Fricke. 2009. Theriogenology 71:534-542.

2008

• Detection of anovulation by heatmount detectors and transrectal ultrasonography before treatment with progesterone in a timed insemination protocol (15 pages, 276 KB)
  Stevenson,  J. S., D. E. Tenhouse, R. L. Krisher, G. C. Lamb, C. R. Dahlen, J. R. Pursley, N. M. Bello, P. M. Fricke, M. C. Wiltbank, D. J. Brusveen, M. Burkhart, R. S. Youngquist, and H. A. Garverick. J. Dairy Sci. 91:2901-2915.

2007

• Effect of Pretreatment with Prostaglandin F2 alpha before Resynchronization of Ovulation on Fertility of Lactating Dairy Cows (9 pages, 112 KB)
  E. Silva, R. A. Sterry, D. Kolb, M. C. Wiltbank, and P. M. Fricke. J. Dairy Sci. 90:5509-5517.
• Accuracy of a Pregnancy-Associated Glycoprotein ELISA to Determine Pregnancy Status of Lactating Dairy Cows Twenty-Seven Days After Timed Artificial Insemination (11 pages, 90 KB)
  E. Silva, R. A. Sterry, D. Kolb, N. Mathialagan, M. F. McGrath, J. M. Ballam, and P. M. Fricke. J. Dairy Sci. 90:4612-4622.
• Assessment of a Practical Method for Identifying Anovular Dairy Cows Synchronized for First Postpartum Timed Artificial Insemination (8 pages, 89 KB)
  E. Silva, R. A. Sterry, and P. M. Fricke. J. Dairy Sci. 90:3255-3262.
• Effect of timing of Cosynch on fertility of lactating Holstein cows after first postpartum and Resynch timed-AI services (6 pages, 130 KB)
  R. A. Sterry, P. W. Jardon, andP. M. Fricke. Theriogenology 67:1211-1216
• Genetic Analysis of the Twenty-One-Day Pregnancy Rate in US Holsteins Using an Ordinal Censored Threshold Model with Unknown Voluntary Waiting Period (11 pages, 175 KB)
  Y. M. Chang, O. Gonzalez-Recio, K. A. Weigel, and P. M. Fricke. J. Dairy Sci. 90:1987-1997.
• An Observational Analysis of Twin Births, Calf Sex Ratio, and Calf Mortality in Holstein Dairy Cattle (10 pages, 276 KB)
  N. Silva del Rıo, S. Stewart, P. Rapnicki, Y. M. Chang, and P. M. Fricke. J. Dairy Sci. 90:1255-1264.

2006

• Survey of Management Practices on Reproductive Performance of Dairy Cattle on Large US Commercial Farms (13 pages, 104 KB)
  D. Z. Caraviello, K. A. Weigel, P. M. Fricke, M. C. Wiltbank, M. J. Florent, N. B. Cook, K. V. Nordlund, N. R. Zwald, and C. L. Rawson. J. Dairy Sci. 89:4723-4735.
• Analysis of Reproductive Performance of Lactating Cows on Large Dairy Farms Using Machine Learning Algorithms (20 pages, 1.05 MB)
  D. Z. Caraviello, K. A. Weigel, M. Craven, D. Gianola, N. B. Cook, K. V. Nordlund, P. M. Fricke, and M. C. Wiltbank. J. Dairy Sci. 89:4703-4722.
• Treatment with Gonadotropin-Releasing Hormone After First Timed Artificial Insemination Improves Fertility in Noncycling Lactating Dairy Cows (9 pages, 95 KB)
  R. A. Sterry, M. L. Welle, and P. M. Fricke. J. Dairy Sci. 89:4237-4245.
• Presynchronization with Gonadotropin-Releasing Hormone Does Not Improve Fertility in Holstein Heifers (7 pages, 67 KB)
  H. Rivera, R. A. Sterry, and P. M. Fricke. J. Dairy Sci. 89:3810-3816.
• Observed frequency of monozygotic twinning in Holstein dairy cattle (8 pages, 167 KB)
  N. Silva del Rıo, B. W. Kirkpatrick, P. M. Fricke. J. Dairy Sci. Theriogenology 66:1292-1299.
• Treatment of Cycling and Noncycling Lactating Dairy Cows with Progesterone During Ovsynch (12 pages, 102 KB)
  J. S. Stevenson, J. R. Pursley, H. A. Garverick, P. M. Fricke, D. J. Kesler, J. S. Ottobre, and M. C. Wiltbank. J. Dairy Sci. 89:2567–2578.
• Effect of Interval from Timed Artificial Insemination to Initiation of Resynchronization of Ovulation on Fertility of Lactating Dairy Cows (11 pages, 417 KB)
  R. A. Sterry, M. L. Welle, and P. M. Fricke. J. Dairy Sci. 89:2099-2109.
• In vitro production of bovine embryos using sex-sorted sperm (9 pages, 111 KB)
  R. D. Wilson, P. M. Fricke, M. L. Leibfried-Rutledge, J. J. Rutledge, C. M. Syverson Penfield, and K. A. Weigel. Theriogenology 65:1007-1015.

2005

• Relationship Between Level of Milk Production and Multiple Ovulations in Lactating Dairy Cows (11 pages, 1.57 MB)
  H. Lopez, D. Z. Caraviello, L. D. Satter, P. M. Fricke, and M. C. Wiltbank. J. Dairy Sci. 88:2783-2793.
• Use of Intravaginal Progesterone-Releasing Inserts in a Synchronization Protocol before Timed AI and for Synchronizing Return to Estrus in Holstein Heifers (12 pages, 293 KB)
  H. Rivera, H. Lopez, and P. M. Fricke. J. Dairy Sci. 88:957-968.
• In Vitro Production of Holstein Embryos Using Sex-Sorted Sperm and Oocytes from Selected Cull Cows (7 pages, 411 KB)
  R. D. Wilson, K. A. Weigel, P. M. Fricke, J. J. Rutledge, M. L. Leibfried-Rutledge, D. L. Matthews, and V. R. Schutzkus. J. Dairy Sci. 88:776-782.

2004

• Fertility of Holstein Dairy Heifers after Synchronization of Ovulation and Timed AI or AI after Removed Tail Chalk (11 pages, 126 KB)
  H. Rivera, H. Lopez, and P. M. Fricke. J. Dairy Sci. 87:2051-2061.
• A Modified Presynchronization Protocol Improves Fertility to Timed Artificial Insemination in Lactating Dairy Cows (7 pages, 373 KB)
  C. Navanukraw, D. A. Redmer, L. P. Reynolds, J. D. Kirsch, A. T. Grazul-Bilska, and P. M. Fricke. J. Dairy Sci. 87:1551-1557.

2003

• Fertility of Dairy Cows after Resynchronization of Ovulation at Three Intervals Following First Timed Insemination (10 pages, 241 KB)
  P. M. Fricke, D. Z. Caraviello, K. A. Weigel, and M. L. Welle. J. Dairy Sci. 86:3941-3950.

2002

• Initiation of the Breeding Season in a Grazing-Based Dairy by Synchronization of Ovulation (12 pages, 147 KB)
  M. C. Cordoba and P. M. Fricke. J. Dairy Sci. 85:1752-1763.
• Scanning the Future—Ultrasonography as a Reproductive Management Tool for Dairy Cattle (9 pages, 64 KB)
  Paul Fricke. J. Dairy Sci. 85:1918-1926.

2001

• Evaluation of Two Hormonal Protocols for Synchronization of Ovulation and Timed Artificial Insemination in Dairy Cows Managed in Grazing-Based Dairies (9 pages, 114 KB)
  M. C. Cordoba and P. M. Fricke. J. Dairy Sci. 84:2700-2708.
• Assessment of a Commercially Available Early Conception Factor (ECF) Test for Determining Pregnancy Status of Dairy Cattle (6 pages, 76 KB)
  M. C. Cordoba, R. Sartori, and P. M. Fricke. J. Dairy Sci. 84:1884-1889.
• Review: Twinning in Dairy Cattle (7 pages, 107 KB)
  P. M. Fricke. Prof. Anim. Sci. 17:61-67.

2000

• Mechanisms that Prevent and Produce Double Ovulations in Dairy Cattle (10 pages, 170 KB)
  M. C. Wiltbank, P. M. Fricke, S. Sangsritavong, R. Sartori, and O. J. Ginther. J. Dairy Sci. 83:2998-3007.