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Rod Geisert

Rodney Geisert


Division of Animal Sciences
S163 Animal Science Research Center
Division Of Animal Sciences
Columbia, MO 65211
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  • Curriculum Vitae


University of Florida, Gainesville

Doctor of Philosophy - Reproductive Physiology, 1982

University of Nebraska, Lincoln

Master of Science - Reproductive Physiology, 1978
Bachelor of Science - Animal Science, 1976

Kearney State College, Kearney, Nebraska


Professional Experience

Professor, 2011-Present, University of Missouri, Columbia

Director Division of Animal Sciences, 2006-2011, University of Missouri, Columbia

Professor, 1992-2006, Oklahoma State University, Stillwater

Visiting Associate Professor, 1990-1991, University of Florida, Gainesville

Associate Professor, 1986-1992, Oklahoma State University, Stillwater

Assistant Professor, 1982-1986, Oklahoma State University, Stillwater

Graduate Assistant, 1978-1982, University of Florida, Gainesville

Graduate Assistant, 1976-1978, University of Nebraska, Lincoln


Who’s Who in Agriculture

Biotech Adventure website approved as recommended resource on Science Netlinks.

Biotech Adventure selected as a winner of the 2004 Top 50 Sci/Tech Web Awards by “Scientific American

Biotech Adventure website selected as a Finalist for the International 2004 Pirelli INTERNETional Award

Finalist for the Phoenix Graduate Teaching Award 2000 Oklahoma State University

Alpha Zeta Outstanding Teacher 1993, 2000 and 2006 College of Agricultural Sciences and Natural Resources, Oklahoma State University.

Instructional Technology Excellence Award 1999 Oklahoma State Regents for Higher Education

Regents Distinguished Teaching Award 1998 Oklahoma State University

Finalist for the 1992 Burlington Northern Faculty Achievement Award


Sarkey Foundation Elmo Baumann Award 2005 Division of Agriculture Sciences and Natural Resources, Oklahoma State University

Big XII Fellowship 2002

Honorary Member Phi Zeta 2002 Oklahoma State University

Sigma Xi Lecturer 1997 Oklahoma State University

Outstanding Young Scientist-Research 1993 Southern Section American Society of Animal Science

James Whatley Award for Meritorious Research 1992 College of Agricultural Sciences and Natural Resources, Oklahoma State University, Stillwater

Tyler Award for Mertorious Teaching, Extension and Research 1992 Department of Animal Science, Oklahoma State University

Research Publications

Books Edited

Control of Pig Reproduction VI. 2001. Eds. R.D. Geisert, H. Niemann and C. Doberska. Journals of Reproduction and Fertility Ltd.

Control of Pig Reproduction V. 1997. Eds. G.R. Foxcroft, R.D. Geisert and C. Doberska. Journals of Reproduction and Fertility Ltd.

Embryonic Mortality in Domestic Species. 1994 Eds. M.T. Zavy and R.D. Geisert. CRC Press, Inc.

Book Chapters

Geisert R.D., J.W. Ross, M.D. Ashworth, F.J. White, G.A. Johnson and U. DeSilva. 2006. Maternal recognition of pregnancy signal or endocrine disruptor: The two faces of oestrogen during establishment of pregnancy in the pig. In: Control of Pig Reproduction VII. R. Kraeling and C. Ashworth, Eds, Nottingham University Press, pp 131-145.

Geisert R.D. and S.R. Cooper. 2005. Estrous Cycle: Mare, Sow. In: Encylopedia of Animal Science, W.G. Pond and A.W. Bell, Eds, Marcel Dekker, Inc., New York. pp 345-348.

Bazer F.W., T.S. Spencer and R.D. Geisert. 2005. Female Reproduction: Anatomy and Physiology. In: Encylopedia of Animal Science, W.G. Pond and A.W. Bell, Eds, Marcel Dekker, Inc., New York. pp 398-403.

Geisert, R.D. and J.R. Malayer. 2000. Fertilization, Cleavage and Implantation. In: Reproduction in Farm Animals. 7th Edition (Ed. E.S.E. Hafez) Williams & Wilkins. pp 126-139.

Pomp, D. and R.D. Geisert. 1998. Developmental Genetics. In: Genetics of the Pig. (Eds. M.F. Rothschild and S.A. Ruvinsky). CAB International. pp 375-403.

Geisert, R.D. 1998. Pigs (Suidae). In: Encyclopedia of Reproduction. (Eds. E. Knobil and J.D. O’Neill). Academic Press, Inc. Vol 3. pp 158-164.

Geisert, R.D. and A.J. Conley. 1998. Chapter 13: Secretion and metabolism of steroids in subprimate mammals during pregnancy. In: Endocrinology of Pregnancy. (Eds. P.M. Conn and F.W. Bazer). Humana Press, Totawa, NJ. pp. 291-3186.

Geisert, R.D. and J.V. Yelich. 1997 Regulation of conceptus development and attachment. In: Control of Pig Reproduction V. (Eds. G.R. Foxcroft and R.D. Geisert). Journals of Reproduction and Fertility Ltd. 52:133-149.

Geisert, R.D., E.C. Short and G.L. Morgan. 1994. Establishment of pregnancy in domestic farm species. In: Embryonic Mortality in Domestic Species. (Eds. R.D. Geisert and M.T. Zavy). CRC Press, Inc. pp 25-54.

Bazer, F.W., R.D. Geisert and M.T. Zavy. 1993. Fertilization cleavage and implantation. In: Reproduction in Farm Animals. 6th Edition (Ed. E.S.E. Hafez) pp. 188-212.

Geisert, R.D., E.C. Short adn M.T. Zavy. 1992. Maternal Recognition of Pregnancy. In: Clinical Trends and Basic Research in Animal Reproduction. (Eds. S.J. Dieleman, B. Colenbrander, P. Booman and T. Van der Lende) pp. 287-298.

Geisert, R.D., M.T. Zavy, R.J. Moffatt, R.M. Blair and T. Yellin. 1990. Embryonic steroids and the establishment of pregnancy. In: Control of Pig Reproduction III. (Eds. D.J.A. Cole, G.R. Foxcroft and B.J. Weir) pp. 293-305.

Bazer, F.W., R.D. Geisert and M.T. Zavy. 1987. Fertilization, cleavage and implantation. In: Reproduction in Farm Animals. 5th Edition (Ed. E.S.E. Hafez) pp. 210-228.

Bazer, F.W., R.D. Geisert, W.W. Thatcher and R.M. Roberts. 1982. The establishment and maintenance of pregnancy. In: Control of Reproduction in the Pig. (Eds. D.J.A. Cole and G.R. Foxcroft) pp. 227-252.

Journal Articles

Fernando S.C., F.Z. Najar, X. Guo, L. Zhou, Y. Fu, R.D. Geisert, B.A. Roe and U. DeSilva. 2007. Porcine kallikrein family: Genomic structure, mapping and differential expression analysis. Genomics 89:429-438.

Geisert R.D., S. Sasakia and A.C. Clutter. 2007. Embyronic Loss in Sows with Repeated Propensity for Small Litter Size. Reprod. Domest. Anim. (In Press)
Spencer D.S., J.W. Ross, M.D. Ashworth, R.D. Geisert and L.F. Rickords. 2006. Porcine Concetpus Oct-4 mRNA Expression During Peri-Implantation Development. Reprod Domest Anim 41:571-572.

Fernando S.C., M.S. Ashworth, J.W. Ross, U. DeSilva and R.D. Geisert. 2006. Porcine Endometrial and Conceptus Tissue Kallikrein 1, 4, 11, and 14 Gene Expression. Reproduction 132:939-947.

Ashworth, M.D., F.J. White, J.W. Ross, J. Hu, U. DeSilva, G.A. Johnson and R.D. Geisert. 2005. Expression of Porcine Endometrial Prostaglandin Synthase During the Estrous cycle, Early Pregnancy and Following Endocrine Disruption of Pregnancy. Biol. Reprod. 74:1007-1015.

White F.J., J.W. Ross, M.M. Joyce, R.D. Geisert, R.C. Burghardt and G.A. Johnson. 2005. Steroid regulation of cell specific osteopontin expression in the pregnant porcine uterus. Biol. Reprod. 73:1294-1301.

Ashworth, M.D., J.W. Ross, D.T. Allen, D.R. Stein, L.J. Spicer and R.D. Geisert. 2005. Endocrine disruption of uterine insulin-like growth factor (IGF) expression in the pregnant gilt. Reprod. 130:545-551.

Ross J.W., T.K. Smith, C.R. Krehbiel, J.R. Malayer, U. DeSilva, J.B. Morgan, F.J. White, M.J. Hersom, G.W. Horn and R.D. Geisert. 2005. Effects of grazing management and subsequent finishing on gene expression in different adipose tissue depots in beef steers. J. Anim Sci. 83:1914-1923.

Geisert R.D., J.W. Ross, M.D. Ashworth and J.R. Malayer. 2004. Estrogen regulator and/or endocrine disruptor in establishment of pregnancy. Current Topics in Steroid Research 4:69-84.

Vonnahme K.A., S.C. Ferando, J.W. Ross, M.D. Ashworth, U. DeSilva, J.R. Malayer and R.D. Geisert. 2004. Porcine endometrial expression of kininogen, factor XII and plasma kallikrein in cyclic and pregnant gilts. Biol. Reprod. 70:132-138.

Geisert, R.D., M.D. Ashworth and J.R. Malayer. 2003. Endometrial expression of inter-a-trypsin inhibitor heavy chains in cyclic and pregnant gilts. Reprod. 126:621-626.

Ross J.W., J.R. Malayer, J.W. Ritchey and R.D. Geisert. 2003. Involvement of the interleukin-1b system in porcine trophoblastic elongation and at the fetal-maternal interface during peri-implantation development. Biol. Reprod. 69:1251-1259.

Ross J.W., M.D. Ashworth, A.G. Hurst, J.R. Malayer and R.D. Geisert. 2003. Analysis and characterization of differential gene expression during rapid trophoblastic elongation in the pig using suppression subtractive hybridization. Reprod. Biol. Endo. 1:23.

Looper, M.L., J.A. Vizcarra, R.P. Wettemann, J.R. Malayer, T.D. Braden, R.D. Geisert, and G.L. Morgan. 2003. Influence of estradiol, progesterone, and nutrition on concentrations of gonadotropins and GnRH receptors, and gene expression for GnRH receptors and gonadotropin subunits in pituitaries of beef cows. J. Anim. Sci. 81:269-278.

Ferrell A.D., J.R. Malayer, K.L. Carraway and R.D. Geisert. 2003. Sialomucin complex (Muc4) expression in porcine endometrium during the oestrous cycle and early pregnancy. Reprod Dom Anim 38:1-3.

Childs, K.D., D.W. Goad, M.F. Allan, D. Pomp, C. Krehbiel, R.D. Geisert, J.B. Morgan and J.R. Malayer. 2002. Differential expression of NAT 1 translational repressor during development of bovine intramuscular adipocytes. Physiol. Genomics 10:49-56.

Mohan, M., S. Ryder, P.L. Claypool, R.D. Geisert and J.R. Malayer. 2002. Analysis of Gene Expression in the Bovine Blastocyst Produced In Vitro Using Suppression-Subtractive Hybridization. Biol. Reprod. 67:447-453.

Moussad, E.E., M.A.E. Rageh, A.K. Wilson, R.D. Geisert and D.R. Brigstock. 2002. Temporal and spatial expression of connective tissue growth factor (CTGF/CCN2) and transforming growth factor beta type 1 (TGF-b1) at the utero-placental interface during early pregnancy in the pig. Mol. Path. 3:186-192.

Mohan, M., J.R. Malayer, R.D. Geisert and G.L. Morgan. 2002. Expression patterns of retinoid X receptors, retinaldehyde dehydrogenase, and peroxisome proliferator activated receptor-gamma in bovine preattachment embryos. Biol. Reprod. 66:692-700.

Geisert, R.D. and R.A.M. Schmitt. 2002. Embryonic mortality in pigs. J. Anim. Sci. 80:E54-E65. (
Allen, M.R., B.R. Zhang, A.M. Hettinger, D.W. Goad, J.R. Malayer and R.D. Geisert. 2002. Detection of bradykinin and bradykinin-b2 receptors in the porcine endometrium during the estrous cycle and early pregnancy. Biol. Reprod. 66:574-579.

Bridges, T.S., T.R. Davidson, C.S. Chamberlain, R.D. Geisert and L.J. Spicer. 2002. Changes in follicular fluid steroids, insulin-like growth factors (IGF) and IGF binding proteins (IGFBP) and IGFBP proteolytic activity during equine follicular development. J. Anim. Sci. 80:179-190.

Mohan, M., J.R. Malayer, R.D. Geisert and G.L. Morgan. 2001. Expression of retinol-binding protein messenger RNA and retinoic acid receptors in preimplantation bovine embryos. Mol. Reprod. Dev 60:289-296.

Hettinger, A.M., M.A. Allen, B.R. Zhang, D.W. Goad, J.M. Malayer and R.D. Geisert. 2001. Presence of acute phase protein, bikunin, in the endometrium of gilts during estrous cycle and early pregnancy. Biol. Reprod. 65:507-513.

Geisert, R.D., C.S. Chamberlain, K.A. Vonnahme, J.R. Malayer and L.J. Spicer. 2001. Possible role of kallikrein in proteolysis of insulin-like growth factor binding proteins during the estrous cycle and early pregnancy in pigs. Reprod. 121:719-728.

Fletcher, K.L., D.R. Topliff, S.R. Cooper, D.W. Freeman and R.D. Geisert. 2000. Influence of age and sex on serum osteocalcin concentrations in horses at weaning and during physical conditioning. J. Eq. Vet. Sci. 20:124-126.

Vonnahme, K.A., J.R. Malayer, H.O. Spivey, S.P. Ford, A.C. Clutter and R.D. Geisert. 1999. Detection of kallikrein gene expression and enzymatic activity in porcine endometrium during the estrous cycle and early pregnancy. Biol. Reprod. 61:1235-1241.

Allen, M.J., S. Sasaki, M.J. Diederich, J.V. Yelich, R.D. Geisert and A.C. Clutter. 1999. Rapid Communication: Assignment of alpha-1-microglobulin bikunin precursor gene (AMBP) to porcine chromosome 1 via a new PCR-based polymorphism. J. Anim. Sci. 77:789-790.

Cardwell, B.E., G.Q. Fitch and R.D. Geisert. 1998. Ultrasonic evaluation for the time of ovulation in ewes treated with norgestomet and norgestomet followed by pregnant mare serum gonadotropin during the spring and fall breeding seasons. J. Anim. Sci. 76:2235-2238.

Geisert, R.D., J.V. Yelich, T. Pratt and D. Pomp. 1998. Expression of an inter-a-trypsin inhibitor heavy chain like protein in the pig endometrium during the estrous cycle and early pregnancy. J. Reprod. Fertil. 114:35-43.

Baskin, L.C., D. Pomp and R.D. Geisert. 1998. Rapid Communication: The porcine inter-a-trypsin inhibitor-heavy chain 4 (ITIH4) gene maps to chromosome 13. J. Anim. Sci. 76:1501-1502.

Ludwig, T.E., B.-C. Sun, K.G. Carnahan, M. Uzumcu, J.V. Yelich, R.D. Geisert and M.A. Mirando. 1998. Endometrial responsiveness to oxytocin during diestrus and early pregnancy in pigs is controlled solely by changes in oxytocin receptor population density. Biol. Reprod. 58:769-777.

Patterson-Bay, D.J., R.D. Geisert, J.E. Minton, C.M. Coughlin, J.P. McCann and G.L. Morgan. 1997. GnRH antagonist inhibition of luteinizing hormone secretion and ovulation in the pig. Anim. Reprod. Sci. 49:207-214.

Yelich, J.V., D. Pomp and R.D. Geisert. 1997. Ontogeny of elongation and gene expression in the early developing porcine conceptuses. Biol. Reprod. 57:1256-1264.

Yelich, J.V., D. Pomp and R.D. Geisert. 1997. Detection of transcripts for retinoic acid receptors, retinol binding protein, and transforming growth factors during rapid trophoblastic elongation in the porcine conceptus. Biol. Reprod. 57:126-134.

Geisert, R.D., R.M. Blair, T. Pratt and M.T. Zavy. 1997. Characterization and proteolytic activity of a cathepsin L-like polypeptide in endometrium and uterine flushings of cycling, pregnant and steriod-treated ovariectomized gilts. Reprod. Fert. & Develop. 9:1-8.

Yelich, J.V., R.D. Geisert, R.A.M. Schmitt, G.L. Morgan and J.P. McCann. 1997. Persistence of the dominant follicle during melengestrol acetate administration and its regression by exogenous estrogen treatment in beef cattle. J. Anim. Sci. 75:745-754.

Messer, L, L, Wang, J. Yelich, D. Pomp, R.D. Geisert, and M.F. Rothschild. 1996. Short Communication: Linkage mapping of the retinoic acid receptor-g (RARG) gene to porcine chromosome 5. Animal Genetics 27:175-177.

Messer, L, L, Wang, J. Yelich, D. Pomp, R.D. Geisert, and M.F. Rothschild. 1996. Short Communication: Linkage mapping of the Retinol-Binding Protein 4 (RBP4) gene to porcine chromosome 14. Mammalian Genome 7:396.

Geisert, R.D., M.J. Dixon, T. Pratt, R.A.M. Schmitt, B.A. Lessley and J.P. McCann. 1995. Isolation and characterization of a 30 kDa endometrial glycoprotein synthesized during the estrous cycle and early pregnancy in the pig. Biol. Reprod. 53:942-954.

Pomp, D., B.A. Good, R.D. Geisert, C.J. Corbin and A.J. Conley. 1995. Sex identification in mammals by polymerase chain reaction and its use to examine sex effects on diameter of day 10- or -11 pig embryos. J. Anim. Sci. 73:1408-1415.

Pomp, D., R.D. Geisert, and J.D. Murray. 1994. Rescue of pregnancy and maintenance of corpora lutea in infertile transgenic mice expressing an ovine metallothionein 1a-ovine growth hormone fusion gene. Biol. Reprod. 52:170-178.

Geisert, R.D., T. Pratt, F.W. Bazer, J.S. Mayes and G.H. Watson. 1994. Immunocytochemical localization and changes in endometrial progestin receptor protein during the porcine oestrous cycle and early pregnancy. Reprod. Fert. & Dev. 6:749-760.

Harney, J.P., T.L. Ott, R.D. Geisert and F.W. Bazer. 1993. Retinol-binding protein gene expression in cyclic and pregnant pigs, sheep and cattle. Biol. Reprod. 40:1066-1073.

Morgan, G.L., R.D. Geisert, J.P. McCann, F.W. Bazer, T.L. Ott, M.A. Mirando and M. Stewart. 1993. Failure of luteolysis and extension of the interoestrous interval in sheep treated with the progesterone antagonist mifepristone (RU 486). J. Reprod. Fert. 98:451-457.

Blair, R.M., M.T. Zavy, T. Yellin and R.D. Geisert. 1993. Estrogen administration on days 9 and 10 of gestation does not adversely effect ultrastructural changes of porcine lumenal epithelium. Anim. Reprod. Sci. 32:253-265.

Geisert, R.D., R.M. Brenner, R.J. Moffatt, J.P. Harney, T. Yellin and F.W. Bazer. 1993. Changes in estrogen receptor protein, mRNA expression and localization in the endometrium of cyclic and pregnant gilts. Reprod. Fert. & Dev. 5:247-260.

Schmitt, R.A.M., R.D. Geisert, G.L. Morgan, L.J. Spicer and I. Sohaili. 1993. Effect of ovarian antral follicle cauterization on interestrous interval of the gilt. Theriogenology 39: 975-984.

Schmitt, R.A.M, R.D. Geisert, M.T. Zavy, E.C. Short and R.M. Blair. 1993. Uterine cellular changes in 2',5'-oligoadenylate synthetase during the bovine estrous cycle and early pregnancy. Biol. Reprod. 48:460-466.

Conley, A.J., R.K. Christenson, S.P. Ford, R.D. Geisert and J.I. Mason. 1992. Steroidogenic enzyme expression in porcine conceptuses during and after elongation. Endocrinology 131:896-902.

Geisert, R.D., E.C. Short and M.T. Zavy. 1992. Maternal recognition of pregnancy. Anim. Reprod. Sci. 28:287-298.

Simmen, F.A., R.C.M. Simmen, R.D. Geisert, F. Martinat-Botte, F.W. Bazer and M. Terqui. 1992. Differential expression, during the estrous cycle and pre- and post-implantation conceptus development, of messenger ribonucleic acids encoding components of the pig uterine insulin-like growth factor system. Endocrinology 130:1547-1556.

Geisert, R.D., G.L. Morgan, E.C. Short, Jr. and M.T. Zavy. 1992. Endocrine events associated with endometrial function and conceptus development in cattle. Reprod. Fert. and Devel. 4:301-305.

Short, E.C., Jr., R.D. Geisert, P.G. Groothius, R.M. Blair, R.A.M. Schmitt and R.W. Fulton. 1992. Porcine conceptus proteins: Antiviral activity and effect on 2', 5'-oligoadenylate synthetase. Biol. Reprod. 46:464-469.

Spicer, L.J. and R.D. Geisert. 1992. Concentrations of insulin-like growth factor-I, estradiol and progesterone in follicular fluid of ovarian follicles during early pregnancy in cattle. Theriogenology 37:749-760.

Mirando, M.A., E.C. Short, Jr., R.D. Geisert, J.L. Vallet and F.W. Bazer. 1991. Stimulation of 2', 5'-oligoadenylate synthetase in sheep endometrium during pregnancy by intrauterine infusion of ovine trophoblast protein-one, and by intramuscular administration of recombinant bovine interferon -aI1. J. Reprod. Fert. 93:599-607.

Langhout, J.D., L.J. Spicer and R.D. Geisert. 1991. Development of a culture system for bovine granulosa cells: Effects of growth hormone, estradiol and gonadotropins on cell proliferation, steroidogenesis and protein synthesis. J. Anim. Sci. 69:3321-3334.

Geisert, R.D., C.Y. Lee, F.A. Simmen, M.T. Zavy, A.E. Fliss, F.W. Bazer and R.C.M. Simmen. 1991. Expression of mRNAs encoding insulin-like growth factor-I, -II and insulin-like growth factor binding protein -2 in bovine endometrium during the estrous cycle and early pregnancy. Biol. Reprod. 45:975-983.

Geisert, R.D., G.L. Morgan, M.T. Zavy, R.M. Blair, L.K. Gries, A. Cox and T. Yellin. 1991. Effect of asynchronous transfer and oestrogen administrations on survival and development of porcine embryos. J. Reprod. Fert. 93:475-481.

Geisert, R.D., T.C. Fox, G.L. Morgan, M.E. Wells, R.P. Wettemann and M.T. Zavy. 1991. Survival of bovine embryos asynchronously transferred to progesterone-treated recipients. J. Reprod. Fert. 92:475-482.

Blair, R.M., R.D. Geisert, M.T. Zavy, E.C. Short, R.W. Fulton and T. Yellin. 1991. Endometrial morphological and secretory alterations associated with embryonic mortality in gilts administered estradiol valerate on Days 9 and 10 of gestation. Biol. Reprod. 44:1063-1079.

O'Neill, L.A., R.D. Geisert, M.T. Zavy, G.L. Morgan and R.P. Wettemann. 1991. Effect of oestrogen inhibitors on conceptus development and maintenance of pregnancy in the gilt. Dom. Anim. Endocr. 8:139-153.

Rasby, R.J., R.P. Wettemann, R.D. Geisert, J.J. Wagner and K.S. Lusby. 1991. Influence of nutrition and body condition on pituitary, ovarian, and thyroid function of nonlactating beef cows. J. Anim. Sci. 69:2073-2080.

Short, E.C., R.D. Geisert, S.D. Helmer, M.T. Zavy and F.W. Fulton. 1991. Expression of antiviral activity and induction of 2',5' oligoadenylate synthetase by conceptus proteins enriched in bovine trophoblast protein-1. Biol. Reprod. 44:261-268.

Rasby, R.J., R.P. Wettemann, R.D. Geisert, L.E. Rice and C.R. Wallace. 1990. Nutrition, body condition and reproduction in beef cows: Fetal and placental development, and estrogens and progesterone in plasma. J. Anim. Sci. 68:4267-4276.

Richards, M.W., R.D. Geisert, L.J. Dawson and L.E. Rice. 1990. Pregnancy response after estrous synchronization of cycling cows with or without a corpus luteum prior to breeding. Theriogenology 34:1185-1193.

Boice, M.L., R.D. Geisert, R.M. Blair and H.G. Verhage. 1990. Identification and characterization of bovine oviductal glycoproteins synthesized at estrus. Biol. Reprod. 43:457-465.

Xie, S., D.M. Broermann, K.P. Nephew, R.D. Geisert and W.F. Pope. 1990. Ovulation and early embryogenesis in swine. Biol. Reprod. 43:236-240.

Gries, L.K., R.D. Geisert, M.T. Zavy, J.E. Garrett and G.L. Morgan. 1989. Uterine alterations coincident with embryonic mortality in the gilt after exogenous estrogen administration. J. Anim. Sci. 67:276-284.

Garrett, J.E., R.D. Geisert, M.T. Zavy and G.L. Morgan. 1988. Evidence for maternal regulation of early conceptus growth and development in the bovine. J. Reprod. Fert. 84:437-446.

Garrett, J.E., R.D. Geisert, M.T. Zavy, R.P. Wettemann and D.S. Buchanan. 1988. Effect of exogenous progesterone on prostaglandin F2arelease and the interestrous interval in bovine. Prostaglandins 36:85-96.

Zavy, M.T., R.D. Geisert, D.S. Buchanan and S.A. Norton. 1988. Estrogen-induced pseudopregnancy in gilts: Its use in estrous synchronization and subsequent influence on litter response. Theriogenology 30:721-732.

Richards, M.W., R.D. Geisert, L.E. Rice, D.S. Buchanan and J.W. Castree. 1988. Influence of synchro-mate-B and breed composition on estrous response and pregnancy rate in spring and fall bred Brahman crossbred beef cows. Theriogenology 29:951-960.

Geisert, R.D., M.T. Zavy and B.G. Biggers. 1988. Effect of heat stress on conceptus and uterine secretion in the bovine. Theriogenology 29:1075-1082.
Geisert, R.D., M.T. Zavy, B.G. Biggers, J.E. Garrett and R.P. Wettemann. 1988. Characterization of the uterine environment during early conceptus expansion in the bovine. Anim. Reprod. Sci. 16:11-25.

Morgan, G.L., R.D. Geisert, M.T. Zavy and A.T. Fazleabas. 1987. Development and survival or porcine blastocysts on day 16 of pregnancy following oestrogen administration on day 9 or day 9 and 10. J. Reprod. Fert. 80:133-141.

Morgan, G.L., R.D. Geisert, M.T. Zavy, R.V. Shawley and A.T. Fazleabas. 1987. Development of porcine blastocysts in an uterine environment advanced by exogenous oestrogen. J. Reprod. Fert. 80:125-131.

Biggers, B.G., R.D. Geisert, R.P. Wettemann and D.S. Buchanan. 1987. The effect of heat stress on early embryonic development in the beef cow. J. Anim. Sci. 64:1512-1518.

Geisert, R.D., B.G. Biggers, R.P. Wettemann and M.T. Zavy. 1987. Length of pseudopregnancy and pattern of uterine protein release as influenced by time and duration of oestrogen administration in the pig. J. Reprod. Fert. 79:163-172.

Geisert, R.D., R.J. Rasby, J.E. Minton and R.P. Wettemann. 1986. Role of prostaglandins in preimplantation development of porcine blastocyst. Prostaglandins 31:191-204.

Fazleabas, A.T., F.W. Bazer, P.J. Hansen, R.D. Geisert and R.M. Roberts. 1985. Differential patterns of secretory protein localization with the pig uterine endometrium. Endocrinology 116:240-245.

Rasby, R.J., R.P. Wettemann and R.D. Geisert. 1984. Effect of body condition of pregnant beef cows on uterine function and fetal development. 10th Inter. Cong. Anim. Reprod. and Art. Insem. Vol. II, p. 162.

Geisert, R.D., B. Biggers, R.P. Wettemann and M.T. Zavy. 1984. Length of pseudopregnancy in the gilt is influenced by days of estradiol benzoate treatment. 10th Inter. Cong. Anim. Reprod. and Art. Insem. Vol. II, p. 507.

Bazer, F.W., S.R. Marengo, R.D. Geisert and W.W. Thatcher. 1984. Exocrine versus endocrine secretion of prostaglandin F2ain control of pregnancy in swine. Anim. Reprod. Sci. 7:114-132.

Brookbank, J.W., R.D. Geisert, J.D. Godkin and F.W. Bazer. 1984. H1 histone synthesis by implanting pig blastocysts. J. Reprod. Fert. 71:297-301.

Fazleabas, A.T., R.D. Geisert, F.W. Bazer and R.M. Roberts. 1983. Relationship between release of plasminogen activator and estrogen by blastocysts and secretion of plasmin inhibitor by uterine endometrium in the pregnant pig. Biol. Reprod. 29:225-238.

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