Professor Department of Animal and Veterinary Sciences University of Idaho Moscow, ID 83844-2201   Phone: 208-885-6507 FAX: 208-885-0501 E-mail: gwoods@uidaho.edu    Ph.D., 1983 University of Wisconsin RESEARCH INTERESTS: Equine Reproduction RESEARCH SUMMARY: Research in our laboratory has focused on the study of reproductive processes in mare and stallions. In mares, we have investigated the causes of early pregnancy loss, the effect of maternal age on fertility, and the embryo-maternal communication that initiates selective embryo transport into the uterus and maternal recognition of pregnancy. In stallions, we used transrectal ultrasonography to determine the pattern of seminal fluid movement during seminal emission. Laboratory members (from left): Larry Olsen, Javier Aguilar, Gordon Woods, and Marcelo Miragaya.   REPRESENTATIVE PUBLICATIONS: Vanderwall DK, Woods GL, Roser JF, Schlafer DH, Sellon DC, Tester DF, White KL. 2006 Equine cloning: applications and outcomes. Reprod Fertil Dev. 2006;18(1-2):91-8 Vanderwall DK, Hyde KJ, Woods GL. 2006 Effect of repeated transvaginal ultrasound-guided follicle aspiration on fertility in mares. J Am Vet Med Assoc. 2006 Jan 15;228(2):248-50. Conforti VA, Vanderwall DK, Woods GL. 2005 Effect of homologous follicular fluid from medium-sized and large follicles on in vitro maturation of equine cumulus-oocyte complexes. Reprod Fertil Dev. 2005;17(6):651-8. Vanderwall DK, Woods GL, Aston KI, Bunch TD, Li G, Meerdo LN, White KL. 2004 Cloned horse pregnancies produced using adult cumulus cells. Reprod Fertil Dev. 2004;16(7):675-9. Vanderwall DK, Woods GL, Sellon DC, Tester DF, Schlafer DH, White KL. 2004 Present status of equine cloning and clinical characterization of embryonic, fetal, and neonatal development of three cloned mules. J Am Vet Med Assoc. 2004 Dec 1;225(11):1694-9. White KL, Woods GL, Vanderwall DK, Li GP, Sessions BR, Bunch TD. 2004 Why clone horses and mules? IEEE Eng Med Biol Mag. 2004 Mar-Apr;23(2):32-6. Weber, J.A. and G.L. Woods (1993). Ultrasonographic measurement of stallion accessory sex glands and excurrent ducts during seminal emission and ejaculation. Biol. Reprod. 49:267-273. Freeman, D.A., D.K. Vanderwall, J.A. Weber, and G.L. Woods (1992). Embryo-initiated oviductal transport in mares. J. Reprod. Fertil. 95:535-538. Weber, J.A., G.L. Woods, D.A. Freeman, and D.K. Vanderwall (1992). Prostaglandin E2-specific binding to the equine oviduct. Prostaglandins 43:61-65. Weber, J.A., G.L. Woods, D.A. Freeman, and D.K. Vanderwall (1992). Prostaglandin E2 secretion by Day-6 to Day-9 equine embryos. Prostaglandins 43:61-65. Freeman, D.A., J.A. Weber, R.T. Geary, and G.L. Woods (1991). Time of embryo transport through the mare oviduct. Theriogenology 36:823-830. Freeman, D.A., J.E. Butler, J.A. Weber, R.T. Geary, and G.L. Woods (1991). Co-culture of day-5 to day-7 equine embryos in medium with oviductal tissue. Theriogenology 36:815-821. Weber J.A., D.A. Freeman, D.K. Vanderwall, and G.L. Woods (1991). Prostaglandin E2 hastens oviductal transport of equine embryos. Biol. Reprod. 45:544-546. Ball, B.A., T.V. Little, J.A. Weber, and G.L. Woods (1989). Survival of day 4 embryos from young normal mares and aged subfertile mares after transfer to normal recipient mares. J. Reprod. Fertil. 27:187-194.