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Animal Science Faculty

Bill Day


Publications

Kubisch, N.-M., M.A. Larson, H. Funahashi, B.N. Day and R.M. Roberts. 1995. Pronuclear visibility, development and transgene expression in IVM/IVF derived porcine embryos. Theriogenology 44:391-401.

Funahashi, Hiroaki, Todd T. Stumpf, Thomas C. Cantley, Nam Hyung Kim and Billy N. Day. 1995. Pronuclear formation and intracellular glutathione content of in vitro matured porcine oocytes following in vitro fertilization and/or electrical activation. Zygote 3:273-281.

Sterle, J.A., T.C. Cantley, W.R. Lamberson, M.C. Lucy, D.E. Gerrard and B.N. Day. 1995. Effects of recombinant porcine somatotropin on placental size, fetal growth and IGF-I and IGF-II concentrations in pigs. J. Anim. Sci. 73:2980-2985.

Kim, Nam-Hyung, Hiroaki Funahashi, Randall S. Prather, Gerald Schatten and Billy N. Day. 1996. Microtubule and Microfilament dynamics in porcine oocytes during meiotic maturation. Mol. Reprod. Dev. 43:248-255.

Kim, Nam-Hyung, Seung Ju Moon, Randall S. Prather and Billy N. Day. 1996. Cytoskeletal alteration in aged porcine oocytes and parthenogenesis. Mol. Reprod. Dev. 43:513-518.

Day, Billy N. and Hiroaki Funahashi. 1996. In vitro maturation and fertilization of pig oocytes. In: R.H. Miller, V.G. Pursel and H.D. Norman (Ed.) Beltsville Symposia in Agricultural Research XX. Biotechnology’s Role in the Genetic Improvement of Farm Animals, p. 125. ASAS, Savoy, IL.

Funahashi, Hiroaki and Billy N. Day. 1996. Current status of in vitro production of porcine embryos. In: M.E. Tumbleson and L.B. Schook (Ed.) Advances in Swine in Biomedical Research, Vol. 2, p. 491-502. Plenum Press, NY.

Funahashi, H., N.H. Kim, T.T. Stumpf, T.C. Cantley and B.N. Day. 1996. Presence of organic osmolytes in maturation medium enhances cytoplasmic maturation of porcine oocytes. Biol. Reprod. 54:1412-1419.

Machaty, Z., H. Funahashi, M.A. Mayes, B.N. Day and R.S. Prather. 1996. Effects of injecting calcium chloride into in vitro-matured porcine oocytes. Biol. Reprod. 54:316-322.

Kim, N.-H., H. Funahashi, L.R. Abeydeera, S.J. Moon, R.S. Prather and B.N. Day. 1996. Effects of oviductal fluid on sperm penetration and cortical granule exocytosis during fertilization of porcine oocytes in vitro. J. Reprod. Fertil. 107:79-86.

Funahashi, Hiroaki, Todd T. Stumpf, Nam-Hyung Kim and Billy N. Day. 1996. Low salt maturation medium enhances the histone H1 kinase activity of porcine oocytes at the end of in vitro maturation. J. Reprod. Dev. 42(2):109-115.

Kim, Nam-Hyung, Calvin Simerly, Hiroaki Funahashi, Gerald Schatten and Billy N. Day. 1996. Microtubule organization in porcine oocytes during fertilization and parthenogenesis. Biol. Reprod. 54:1397-1404.

Funahashi, Hiroaki, Zoltan Machaty, Randall S. Prather and Billy N. Day. 1996. g-glutamyl transpeptidase of spermatozoa may decrease oocyte glutathione content at fertilization in pigs. Mol. Reprod. Dev. 45:485-490.

Akinbami, M.A., D.O. Kiesling, S. Meredith, J.E. Warren, Jr. and B.N. Day. 1996. Embryonic survival in the uterus of ewes inseminated at the uterotubal junction on day 32 post partum. Theriogenology 45:1129-1139.

Yuan, W., J.A. Sterle, T.C. Cantley, W.R. Lamberson, B.N. Day and M.C. Lucy. 1996. Responses of porcine corpora lutea to somatotropin administration during pregnancy. J. Anim. Sci. 74:873-878.

Li, J., A. Rieke, B.N. Day and R.S. Prather. 1996. Technical note: Porcine non-surgical embryo transfer. J. Anim. Sci. 74:2263-2268.

Kim, N.-H., B.N. Day, H.T. Lee and K-S. Chung. 1996. Microfilament assembly and cortical granule distribution during maturation, parthenogenetic activation and fertilization in the porcine oocyte. Zygote 4:145-149.

Machaty, Zoltan, H. Funahashi, B.N. Day and R.S. Prather. 1997. Developmental changes in the intracellular Ca2+ release mechanisms in porcine oocytes. Biol. Reprod. 56:921-930.

Funahashi, H., T.C. Cantley and B.N. Day. 1997. Preincubation of cumulus-oocyte complexes before exposure to gonadotropins improves the developmental competence of porcine embryos matured and fertilized in in vivo. Theriogenology 47:679-686.

Wang, Wei-Hua, Qing-Yuan Sun, Misa Hosoe, Yasuo Shioya and Billy N. Day. 1997. Quantified analysis of cortical granule distribution and exocytosis of porcine oocytes during meiotic maturation and activation. Biol. Reprod. 56:1376-1382.

Funahashi, Hiroaki, Thomas C. Cantley and Billy N. Day. 1997. Synchronization of meiosis in porcine oocytes by exposure to dibutyryl cyclic adenosine monophosphate improves developmental competence following in vitro fertilization. Biol. Reprod. 57:49-53.

Abeydeera, L.R., H. Funahashi, N.-H. Kim and B.N. Day. 1997. Chlortetracycline fluorescence patterns and in vitro fertilization of frozen-thawed boar spermatozoa incubated under various bicarbonate concentrations. Zygote 5:117-125.

Abeydeera, Lalantha R. and B.N. Day. 1997. Fertilization and subsequent development of in vitro pig oocytes inseminated in a modified tris-buffered medium with frozen-thawed ejaculated spermatozoa. Biol. Reprod. 57:729-734.

Abeydeera, L.R. and B.N. Day. 1997. In vitro penetration of pig oocytes in a chemically semi-defined medium: Effects of BAS, caffeine and calcium. Theriogenology 48:537-544.

Machaty, Zoltan, Wei-Hua Wang, Billy N. Day and Randall S. Prather. 1997. Complete activation of porcine oocytes induced by the sulfhydryl reagent, Thimerosal. Biol. Reprod. 57:1123-1127.

Kim, N.-H., K.-S. Chung and B.N. Day. 1997. The distribution and requirements of microtubules and microfilaments during fertilization and parthenogenesis in pig oocytes. J. Reprod. Fertil. 111:143-149.

Wang, W.H., L.R. Abeydeera, T.C. Cantley and B.N. Day. 1997. Effects of oocyte maturation media on development of pig embryos produced by in vitro fertilization. J. Reprod. Fertil. 111:101-108.

Funahashi, H. and B.N. Day. 1997. Advances in in vitro production of pig embryos. J. Reprod. Fertil. Suppl. 51:271-283.

Kim, N-H., B.N. Day, J-G. Lim, H.T. Lee and K.S. Chung. 1997. Effects of oviductal fluid and heparin on fertility and characteristics of porcine spermatozoa. Zygote 5(1):61-65.

Wang, W.-H., L.R. Abeydeera, R.S. Prather and B.N. Day. 1998. Morphological comparison of ovulated and in vitro-matured porcine oocytes, with particular reference to polyspermy after in vitro fertilization. Mol. Reprod. Dev. 49:308-316.

Abeydeera, Lalantha R., Wei-Hua Wang, Thomas C. Cantley, August Rieke and Billy N. Day. 1998. Coculture with follicular shell pieces can enhance the developmental competence of pig oocytes after in vitro fertilization: Relevance to intracellular glutathione. Biol. Reprod. 58:213-218.

Prather, R.S. and B.N. Day. 1998. Practical considerations for the in vitro production of pig embryos. Theriogenology 49:23-32.

Wang, Wei-Hua, Zoltan Machaty, Lalantha R. Abeydeera, Randall S. Prather and B.N. Day. 1998. Parthenogenetic activation of pig oocytes with calcium ionophore and the establishment of the zona block to sperm penetration after activation. Biol. Reprod. 58:1357-1366.

Abeydeera, L.R., W.H. Wang, R.S. Prather and B.N. Day. 1998. Maturation in vitro of pig oocytes in protein-free calcium media: Fertilization and subsequent embryo development in vitro. Biol. Reprod. 58:1316-1320.

Machaty, Zoltan, Billy N. Day and Randall S. Prather. 1998. Development of early porcine embryos in vitro and in vivo. Biol. Reprod. 59:451-455.

Wang, W.H., L.R. Abeydeera, R.S. Prather and B.N. Day. 1998. Functional analysis of activation of porcine oocytes by spermatozoa, calcium ionophore and electrical pulse. Mol. Reprod. Dev. 51:346-353.

Murry, A.C., Jr., G.W. Jesse, T.L. Veum and B.N. Day. 1998. Nitrogen retention, ovulation rate, and hormonal profiles in gilts fed a high-protein diet. The Professional Animal Scientist 14:95-101.

Abeydeera, Lalantha R., Wei-Hua Wang, Thomas C. Cantley, August Rieke, Randall S. Prather and Billy N. Day. 1998. Presence of epidermal growth factor during in vitro maturation of pig oocytes and embryo culture can modulate blastocyst development after in vitro fertilization. Mol. Reprod. Dev. 51:395-401.

Abeydeera, L.R., L.A. Johnson, G.R. Welch, W.H. Wang, A.C. Boquest, T.C. Cantley, A. Rieke and B.N. Day. 1998. Birth of piglets preselected for gender following in vitro fertilization of in vitro matured pig oocytes by X and Y chromosome bearing spermatozoa sorted by high speed flow cytometry. Theriogenology 50:981-988.

Abeydeera, L.R., W.H. Wang, T.C. Cantley, R.S. Prather and B.N. Day. 1998. Presence of b-mercaptoethanol can increase the glutathione content of pig oocytes matured in vitro and the rate of blastocyst development after in vitro fertilization. Theriogenology 50(5):747-756.

Prather, Randall S., August Rieke and B.N. Day. 1998. Non-surgical embryo transfer in pigs: Introduction of new genetics with little risk of disease transmission. IETS Newsletter 16(3):14-16.

Wang, Wei-Hua, Zoltan Machaty, Nancy Ruddock, Lalantha R. Abeydeera, Randall S. Prather and Billy N. Day. 1999. Activation of porcine oocytes with calcium ionophore: Effects of extracellular calcium. Mol. Reprod. Dev. 53:99-107.

Wang, Wei-Hua, Zoltan Machaty, Lalantha R. Abeydeera, Randall S. Prather and Billy N. Day. 1999. Time course of cortical and zona reactions of pig oocytes upon intracellular calcium increase induced by thimerosal. Zygote 7:79-86.

Wang, Wei-Hua, Lalantha R. Abeydeera, Yong-Mahn Han, Randall S. Prather and B.N. Day. 1999. Morphologic evaluation and actin filament distribution in porcine embryos produced in vitro and in vivo. Biol. Reprod. 60:1020-1028.

Boquest, Andrew C., Billy N. Day and Randall S. Prather. 1999. Flow cytometric cell cycle analysis of cultured porcine fetal fibroblast. Biol. Reprod. 60:1013-1019.

Machaty, Zoltan, Wei-Hua Wang, Billy N. Day and Randall S. Prather. 1999. Calcium release and subsequent development induced by modification of sulfhydryl groups in porcine oocytes. Biol. Reprod. 60:1384-1391.

Prather, R.S., A.C. Boquest and B.N. Day. 1999. Cell cycle analysis of cultured porcine mammary cells. Cloning1(1):17-24.

Day, B.N., A. Rieke, T.C. Cantley, S. Burggraaf and M.L. Day. 1999. Effect of intravaginal progesterone (P4) insert-porcine (IPI-P) on synchronization of estrus, ovulation rate, fertility and P4 blood levels in gilts. In: Control of Reproduction in the Female Pig. 30th Annual Meeting Amer. Assoc. Swine Practitioners, St. Louis, MO. Workshop #6, pp. 23-39.

Han, Y., L.R. Abeydeera, J.H. Kim, H.-B. Moon, R.A. Cabot, B.N. Day and R.S. Prather. 1999. Growth retardation of inner cell mass cells in polyspermic pig embryos produced in vitro. Biol. Reprod. 50:1110-1113.

Tao, T., A.C. Boquest, Z. Machaty, A.L. Petersen, B.N. Day and R.S. Prather. 1999. Development of pig embryos by nuclear transfer of cultured fetal fibroblast cells. Cloning 1(1):55-62.

Abeydeera, Lalantha R., Wei-Hua Wang, Thomas C. Cantley, Randall S. Prather and Billy N. Day. 1999. Glutathione content and embryo development after in vitro fertilization of pig oocytes matured in the presence of a thiol compound and various concentrations of cysteine. Zygote (In Press)

Boquest, A.C., L.R. Abeydeera, W.H. Wang and B.N. Day. 1999. Effect of adding reduced glutathione during insemination on the development of porcine embryos in vitro. Theriogenology 51(7):1311-1319.

Han, H.-M., L.R. Abeydeera, W.-H. Wang, A.L. Petersen, J.-H. Kim, C. Murphy, B.N. Day and R.S. Prather. 1999. Normal development of poly-pronuclear pig eggs matured and fertilized in vitro. Biol. Reprod. (Accepted)

Abeydeera, L.R., W.-H. Wang, T.C. Cantley, A. Rieke, C.N. Murphy, R.S. Prather and B.N. Day. 1999. Development and viability of pig oocytes matured in a protein-free medium containing epidermal growth factor. Theriogenology (Submitted)

Kim, J.-H., H.-J. Do, W.-H. Wang, Z. Machaty, Y.-M Han, B.N. Day and R.S. Prather. 1999. A protein tyrosine phosphatase inhibitor, sodium orthovanadate, causes parthenogenetic activation of pig oocytes via an increase in protein tyrosine kinase activity. Biol. Reprod. 61(4):900-905.

Tao, T., Z. Machaty, A.C. Boquest, B.N. Day and R.S. Prather. 1999. Development of pig embryos reconstructed by microinjection of cultured fetal fibroblast cells into in vitro matured oocytes. Anim. Reprod. Sci. 56:133-141.

Funahashi, H., E.W. McIntush, M.F. Smith and B.N. Day. 1999. The presence of tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) during meiosis improves porcine ‘oocyte competence’ as determined by early embryonic development after in vitro-fertilization. J. Reprod. Dev. 45(4):265-271.

Green, K.M., J.H. Kim, W.-H. Wang, B.N. Day and R.S. Prather. 1999. Effect of myosin light chain kinase, protein kinase A and protein kinase C inhibition on porcine oocyte activation. Biol. Reprod. 61(1):111-119.

Han, Y.M., W.H. Wang, L.R. Abeydeera, A.L. Petersen, J.H. Kim, C. Murphy, B.N. Day and R.S. Prather. 1999. Pronuclear location before the first cell division determines ploidy of polyspermic pig embryos. Biol. Reprod. 61(5):1340-1346.

Anderson, J.E., R.L. Matteri, L.R. Abeydeera, B.N. Day and R.S. Prather. 1999. Cyclin B1 transcript quantitation over the maternal to zygotic transition in both in vitro and in vitro derived 4-cell porcine embryos. Biol. Reprod. 61:1460-1467.

Kuhholzer, B., T. Tao, Z. Machaty, R.J. Hawley, J.L. Greenstein, B.N. Day and R.S. Prather. 1999. Production of transgenic porcine blastocysts by nuclear transfer. Biol. Reprod. 56:145-148.

Wang, W.-H., L.R. Abeydeera, R.S. Prather and B.N. Day. 1999. Polymerization of non-filamentous actin into microfilaments is an important process for porcine oocyte maturation and early embryo development. Biol. Reprod. 62:1177-1183.

Tao, T., Z. Machaty, L.R. Abeydeera, B.N. Day and R.S. Prather. 2000. Optimisation of porcine oocyte activation following nuclear transfer. Zygote 8:67-77.

Kouba, A.J., L.R. Abeydeera, I.M. Alvarez, B.N. Day and W.C. Buhi. 2000. Effects of the porcine oviduct-specific glycoprotein on fertilization, polyspermy. and embryonic development in vitro. Biol. Reprod. 63:242-259.

Day, B.N. 2000. Reproductive biotechnologies: Current status in porcine reproduction. Anim. Repro. Sci. 60-61:161-172.