Faculty Website

Paul Fricke
Professor of Reproductive Physiology

Peer-Reviewed Articles

Wiltbank M.C., Pursley J.R. 2013. The cow as an induced ovulator: Timed AI after synchronization of ovulation. Theriogenology. 81:170-185.

Ayres, H., Ferreira, R.M., Cunha, A.P., Araujo, R.R., Wiltbank, M.C. Double-Ovsynch in high-producing dairy cows: Effects on progesterone concentrations and ovulation to GnRH treatments. Theriogenology. 79:159-164.

Haughian, J.M, Ginther, O.J., Diaz, F.J., Wiltbank, M.C. 2013. Gonadotropin-Releasing Hormone, Estradiol, and Inhibin Regulation of Follicle-Stimulating Hormone and Luteinizing Hormone Surges: Implications for Follicle Emergence and Selection in Heifers. Biology of Reproduction. 88:1-10.

Atli, M.O., Bender, R.W., Mehta, V., Bastos, M.R., Luo, W., Vezina, C.M., Wiltbank, M.C. 2012. Patterns of Gene Expression in the Bovine Corpus Luteum Following Repeated Intrauterine Infusions of Low Doses of Prostaglandin F2alpha. Biology of Reproduction. 86:1-13.

Carvalho, P.D., Souza, A.H., Sartori, R., Hackbart, K.S., Dresch, A.R., Vieira, L.M., Baruselli, P.S., Guenther, J.N., Fricke, P.M., Shaver, R.D., Wiltbank, M.C. 2013. Effects of deep-horn AI on fertilization and embryo production in superovulated cows and heifers. Theriogenology. 80:1074-1081.

Herlihy, M.M., Giordano, J.O., Souza, A.H., Ayres, H., Ferreira, R.M., Keskin, A., Nascimento, A.B., Guenther, J.N., Gaska, J.M., Kacuba, S.J., Crowe, M.A., Butler, S.T., Wiltbank, M.C. 2012. Presynchronization with Double-Ovsynch improves fertility at first postpartum artificial insemination in lactating dairy cows. J. Dairy Sci. 95:7003-7014.

Hackbart, K.S., Cunha, P.M., Meyer, R.K., Wiltbank, M.C. Effect of Glucocorticoid-Induced Insulin Resistance on Follicle Development and Ovulation. Biology of Reproduction. 88:1-12.

Diaz, F.J., Luo, W., Wiltbank, M.C. 2010. Effect of Decreasing Intraluteal Progesterone on Sensitivity of the Early Porcine Corpus Luteum to the Luteolytic Actions of Prostaglandin F2alpha. Biology of Reproduction. 84:26-33.

Souza, A.H., Ayres, H., Ferreira, R.M., Wiltbank, M.C. 2008. A new presynchronization system (Double-Ovsynch) increases fertility at first postpartum timed AI in lactating dairy cows. Theriogenology. 70:208-215.

Penagaricano, F., Souza, A.H., Carvalho, P.D., Driver, A.M., Gambra, R., Kropp, J., Hackbart, K.S., Luchini, D., Shaver, R.D., Wiltbank, M.C. Khatib, H. 2013. Effect of Maternal Methionine Supplementation on the Transcriptome of Bovine Preimplantation Embryos. PLOS One.

Nascimento, A.B., Bender, R.W., Souza, A.H., Ayres, H., Araujo, R.R., Guenther, J.N., Sartori, R., Wiltbank, M.C. 2013. Effect of treatment with human chorionic gonadotropin on day 5 after timed artificial insemination on fertility of lactating dairy cows. J. Dairy Sci. 96:2873-2882.

Luo, W., Gumen, A., Haughian, J.M., Wiltbank, M.C. 2010. The Role of Luteinizing Hormone in Regulating Gene Expression During Selection of a Dominant Follicle in Cattle. Biology of Reproduction. 

Giordano, J.O., Wiltbank, M.C., Fricke, P.M., Santiago, B., Pawlisch, R., Guenther, J.N., Nascimento, A.B. 2013. Effect of increasing GnRH and PGF2a dose during Double-Ovsynch on ovulatory response, luteal regression, and fertility of lactating dairy cows. Theriogenology. 80:773-783.

Piccinato CA, Rosa GJM, N’Jai AU, Jefcoate CR, Wiltbank MC (2013) Estradiol and Progesterone Exhibit Similar Patterns of Hepatic Gene Expression Regulation in the Bovine Model. PLOS ONE 8(9): e73552.

Wiltbank, M.C., Souza, A.H., Giordano, J.O., Nascimento, A.B., Vasconcelos, J.M., Pereira, M.H.C., Fricke, P.M., Surjus, R.S., Zinsly, F.C.S., Carvalho, P.D., Bender, R.W., Sartori, R. 2012. Positive and negative effects of progesterone during timed AI protocols in lactating dairy cattle. Animal Reproduction. 9:231-241.

Lopes Jr, G., Giordano, J.O., Valenza, A., Herlihy, M.M., J.N. Guenther, Wiltbank, M.C., Fricke, P.M. 2013. Effect of timing of initiation of resynchronization and presynchronization with gonadotropin-releasing hormone on fertility of resynchronized inseminations in lactating dairy cows. J. Dairy Sci. 96:3788-3798.

Bilby, T.R., Bruno, R.G.S., Lager, K.J., Chebel, R.C., Moraes, J.G.N., Fricke, P.M., Lopes Jr, G., Giordano, J.O., Santos, J.E.P., Lima, F.S., Stevenson, J.S., Pulley, S.L. 2013. Supplemental progesterone and timing of resynchronization on pregnancy outcomes in lactating dairy cows. J. Dairy Sci. 96:7032-7042.

Valenza, A., Giordano, J.O., Lopes Jr., G., Vincenti, L., Amundson, M.C., Fricke, P.M. 2012. Assessment of an accelerometer system for detection of estrus and treatment with gonadotropin-releasing hormone at the time of insemination in lactating dairy cows. Journal of Dairy Science. 95:7115-7127.

Silva del Rio, N., Stewart, S., Rapnicki, P., Chang, Y.M., Fricke, P.M. 2006. An Observational Analysis of Twin Births, Calf Sex Ratio,and Calf Mortality in Holstein Dairy Cattle. J. Dairy Sci. 90:1255-1264.

Giordano, J.O., Guenther, J.N., Lopes Jr. G., Fricke, P.M. 2011. Changes in serum pregnancy-associated glycoprotein, pregnancy-specific  protein B, and progesterone concentrations before and after induction of pregnancy loss in lactating dairy cows. J. Dairy Sci. 95:683-697.

Bork, N.R., Schroeder, J.W., Lardy, G.P., Vonnahme, K.A., Bauer, M.L., Buchanan, D.S., Shaver, R.D., Fricke, P.M. 2010. Effect of feeding rolled flaxseed on milk fatty acid profiles and reproduction performance of dairy cows. Journal of Animal Science. 88:3739-3748.

Extension Papers

Fricke, Paul M. Strategies for Resynchronization of Ovulation and Timed AI.

Fricke, Paul M. Reproductive Challenges of High Producing Dairy Cows.

Fricke, Paul M. Setting up Cows for First Postpartum Artificial Insemination.

Fricke, Paul M. Use of Chemical Tests for Pregnancy Diagnosis in a Reproductive Management Program.

Fricke, Paul M. Twinning in Dairy Cattle.

Conference Proceedings

Popular Press Articles

Fricke, Paul M. 2011. Seven musts for getting cows bred. Hoard’s Dairyman. 10 March 2011.